all republics dominated by muslim minorities voted for the ruling party with rates above 95%; check caucasian republics, tatarstan, bashkir..apparently minnorities in russia love the ruling party more than russians themselves.
The societies there are quasi-tribal and almost everyone votes for who their elder tells them to. The elder sells the votes for favors for their tribe.
There perhaps is one valid reason for them to: Minorities can get big preference by being extremelly loyal. Majority can't because there is only one pie.
The fed money transfers from Moscow to Caucasus and nat. republics are huge, and that's their deal: Moscow pays, the republics' rulers provide near 100% votes.
Chechnya usually votes close to 100% for Putin, simply because a lot of government money is poured in Chechnya, disproportionately more than in any other region of Russia,