I don't know if the exactness of the numbers is spurious and designed to suggest authenticity, or if these are genuine figures. But I don't rule them out.
"Meanwhile, new figures suggest that Putin's war has cost more than 100,000 Russian lives.
Telegram channel General SVR claims that the Russian leader has been informed of 77,291 killed in his regular forces since he started the conflict in February.
In addition some 23,517 have been killed in private military companies like Wagner which are involved in his war.
Further, some 5,308 Russian national guards have been killed, said the channel.
The Russian channel has regularly suggested the toll is higher than other sources.
If correct, it would mean an overall Russian toll of 106,116."
http://www.dailymail.co.uk/news/article-11397991/Russian-marines-say-incompetent-generals-treating-cannon-fodder.html
Also, Russian forces lost 300 people (50%) in four days at Pavlivka. Ouch.