Pieces Of Russa

Wikipedia summarizes the constituent pieces (the "Federal subjects") of the Russian Federation.

There are 83 parts that are internationally recognized including 26 that have significant autonomy (21 republics (in green), 4 autonomous districts within provinces (in blue), and 1 autonomous province (in purple)), and also 46 provinces (oblasts, in yellow), 9 territories (krais, in orange), and 2 federal cities (in red) that have less autonomy. 

As of 2022 according to official Russian Federation estimates the 21 Republics are home to 24,532,230 people, the four autonomous districts have 2,310,894 people, and the autonomous province has 150,453 people, for a total of 26,993,577 people in the 26 parts with significant autonomy. The 46 provinces are home to 78,986,698 people, the 9 territories have 22,589,845 people, and the 2 federal cities (Moscow and St. Petersberg) have 18,612,023 people, for a total of 120,188,566 people in the 57 parts with less autonomy, and 147,182,123 people in the Russian federation in all.

There are also 6 parts in occupied Ukraine that are not internationally recognized: 3 Republics (Crimea, Dontesk and Luganst), and the independent city of Sevastopol on the Crimean peninsula, which have been held de facto since 2014, and two provinces purportedly annexed in 2022 (Kherson and Zaporozhye). Official Russian statistics estimate that there are 1,934,640 people in Crimea, 547,820 people in Sevastopol, 4,100,280 people in Dontesk, 2,121,322 people in Luganst, 1,666,515 in Zaporozhye, and 1,016,707 people in Kherson. In all, Russia claims that 11,387,284 live in occupied Ukraine.

Each federal subject belongs to one of the following types.

Legend[2]	Description
46 oblasts   2 unrecognized	The most common type, with a governor and locally elected legislature. Commonly named after their administrative centres. Kherson and Zaporozhye oblasts are partially occupied and were annexed in 2022 and are not internationally recognized as parts of Russia.
21 republics   3 unrecognized	Nominally autonomous,[9][10] each with its own constitution, language, and legislature, but represented by the federal government in international affairs. Most are home to a specific ethnic minority (or group of minorities, in the cases of Dagestan and Mordovia). Donetsk and Lugansk Republics are partially occupied since 2014 and were annexed in 2022 and are not internationally recognized as parts of Russia; Crimea was annexed in 2014 and is not internationally recognized as part of Russia.
9 krais	For all intents and purposes, krais are legally identical to oblasts. The title "krai" ("frontier" or "territory") is historic, related to geographic (frontier) position in a certain period of history. The current krais are not related to frontiers.
4 autonomous okrugs	Occasionally referred to as "autonomous district", "autonomous area", or "autonomous region", each with a substantial or predominant ethnic minority. With the exception of Chukotka, each of the autonomous okrugs are a part of another oblast (Arkhangelsk and Tyumen), as well as its own federal subject.
2 federal cities   1 unrecognized	Major cities that function as separate regions. Sevastopol was annexed in 2014 and is not internationally recognized as part of Russia.
1 autonomous oblast	The only one is the Jewish Autonomous Oblast.