How do you divide using scientific notation?

Answer 1

When dividing a smaller number into a larger number, subtract the exponents.

8 x 10^5 divided by 4 x 10^2 = 2 x 10^3

Answer 2

If a >= b so that (a/b) > 1 then a*10^x / b*10^y = (a/b)*10^(x-y)If a < b so that (a/b) < 1 then a*10^x / b*10^y = (10*a/b)*10^(x-y-1)