I am embarking on a robotics project. As a part of that I will be connecting two motors to a motor controller designed for two (+1) motors. Each motor has voltage 6-12V and the motor controller has 5-24V. My question is how does the motor controller distribute voltage from the power supply? If I connect 24V to it, will that be too much for my motors? Or will it be evenly distributed between them?

Here are the motors I am using:

https://www.servocity.com/90-rpm-micro-gear-motor/

And here is the motor controller:

https://www.servocity.com/trex-jr-dual-motor-controller/

Sorry if the question is basic, I am just getting into this and trying to understand what means what. Thank you!