>>539154589
CS:GO back in July 1st, 2017 had 11,561,634
unique players last month
In June 2017, CS:GO had an average concurrent player count of 374,388
This brings the multiplier to 30.88
https://web.archive.org/web/20170701084815/http://blog.counter-strike.net/

If we multiply 30.88 by Deadlock's average 31,341, we get a monthly active player base of 967,810

Additionally every match gives out 12 votes, so your math was inherently flawed. This means that according to my previous math, every player would've needed to play 1 match. With this math, every player would need to play 0.517 matches to reach that vote count.