TLDR for the article: Putin said that if he fulfilled the requirements that mere mortals must go through to get citizenship, then he can get citizenship too. Gerard Depardieu was a case of "extraordinary naturalization." He would be normal naturalization. If he was applying to Japan and not Russia, this would be the answer: http://www.turning-japanese.info/2012/06/do-rich-or-famous-get-to-skip.html
"I want to ask you about maybe having a passport to go back and forth so that I can do business," said Roy Jones Jr.
He added without a hint of irony: "because all the people here seem to love Roy Jones Jr and I love it when people love me."
Putin replied: "Your name is so famous for our sport lovers and lovers of box in Russia, and if you are to spend a significant part of your life in Russia doing your business, then I surely will be glad to satisfy your request about receiving Russian passport and Russian citizenship.
I believe that the lovers of boxing would be very happy about that."