How does Audi A8's Quattro system work?

I've heard about Audi's iconic Quattro system and was wondering how it actually functions in the A8 model. Can someone explain it to me?

The Quattro system in Audi A8 is an all-wheel-drive system that distributes power to all four wheels for enhanced stability and traction on any road surface. It continuously monitors the road conditions and adjusts power distribution to each wheel accordingly. This gives the car better handling and control, especially in slippery conditions.

The Quattro system uses a center differential to distribute power between the front and rear axles. When the car detects a loss of traction on one or more wheels, the system can send up to 70% of available torque to the front wheels or up to 85% to the rear wheels, depending on the situation. This ensures optimal driving performance and stability.