For my 3rd week of math 10 one of the things I learned was how to use scientific notation. It is used to calculate big numbers and is a much simpler way to do so. I will show you how to turn a big number like 529000000 into 5.29 x 
For our number I will be using 62800000000.
Step 1-
Move the decimal from right to left until it is in between the one and ten place.
ex. 
Step 2-
Write down the decimal. Count how many times you moved the decimal and make that number to the exponent of 10.
ex.
*Notes*
- If you are moving the decimal to the left the exponent will be negative
- If you move the decimal to the right the exponent will be positive
- The first number has to be bigger than 1 and smaller then 10
- It will be always multiplied by 10