Simple, He has two powers. Events can happen because He wills every step of the act (absolute) or because he supplies the trigger and the laws by which it will evolve (absolute followed by ordered). The vast majority of events happen because of his order power. Some events, like the start of the universe, happen because of his absolute power.
Getting back to the original comments and questions.....
So how do you know HOW God did things and decided to do things?
How are you privy to such information?
Did He tell you Himself?
Genesis 1.