Is it true that the order when dividing three real does not affect the answer?

Real number is actually any number and dividing numbers is not replacable like adding or multiplying. Changing the order may not affect the answer in some situation, however it's not a rule. For example:

12 : 3 : 2 = 2 is the same as 12 : 2 : 3 = 2 but it's not the same as 3 : 2 : 12 = 0,125

I’m confused as to what you are asking 66 2/3 percentage wise