I am not sure ywhat you are asking.

I think you are asking for a little program to find the power when it is written in scientific notation?

How about having a counter.

1 counter c=0

2 number n=50000000000000000000000 (or whatever the original number is)

3 Test: Is the number n less than 10?

4 If yes, then n is the power and END

5 If no, then add 1 to counter

6 replace n with n divided by 10

7 Go to step 3

I have not checked my logic thoroughly but that seems like a good outling of a little program that will do this