What processes took place in the Golden Horde? How did they affect Russian-Horde relations?

When the Golden Horde reached the peak of its prosperity and power, numerous processes began to arise in it, characterized by an intensification of the struggle for power in the state. Distracted by their internal strife, the Golden Horde khans began to constantly weaken their influence and control over the Russian lands subject to them. The Russian principalities took advantage of the favorable situation and began to unite around the Moscow principality to fight the Mongol yoke.