im not sure what kind of formula to use for the below.

i want to divide a variable number by a constant number and need to know how many times it took to divide it to get below x number?

such as:

4650 is the variable number, 6 is the constant, and 20 is x.

4650 divided by 6, then the product of that divided by 6, etc etc.

(4650/6=775--> 775/6-129.167--> 129.167/6=21.528--> 21.528/6=3.588)

i need to know how many divisions it takes to get below x

so somewhere between the 3rd and 4th division is the number im looking for.

i need to be able to change the variable, but the constant and x would always be the same.

does that make sense? any idea as to what kind of equation i need to use for this type problem?