About 2 million Azerbaijanis live in Russia, and keep in mind that some of them live in Dagestan, which used to be part of Azerbaijan. There are about 10 million Azerbaijanis in Azerbaijan. That is, 1/5, and not 1/3 of Azerbaijanis from the population of Azerbaijan live in Russia.
Your forget about 15 million azerbaijanis in Iran. Yep, this is kinda fun that in Iran living more azerbaijanis than in Azerbaijan.
So we have 15 + 8-10 + 2 = 25-27 million
The number of azerbaijanis in Russia is even less than 10 %
Firstly, there are 25-35 million Azerbaijanis in Iran. Secondly, my opponent compared the Azerbaijanis in Russia with their number in Azerbaijan.
After the fall of the Parthian kingdom as a result of the Arab conquests, ethnic Iranians were not in power until Pahlavi came to power, before him the Turks (including Azerbaijanis) owned power in Iran.