Answer:
7.5 x 10^5
Explanation:
See the attached worksheet.
Scientific notation is a very convenient protocol for working with, and reporting, very large or small numbers. It allows one to condense all the non-significant zeros into an expression of 10^x. Examples:
1) 0.00000000000000000015 becomes 1.5x10^-19, and
2) 45000000000000000000000 becomes 4.5x10^22
Both numbers are much easier to compare, the notation approach saves space (publishers), takes less time to type, and makes the math much easier, as this problem will demonstrate. It also eliminates many transcription errors. E.g., try dividing these two numbers using long division.
The specific problem here is to divide two very different numbers. The attached worksheet explains the steps.