I will gladly help you with this problem. The term you are looking for is called scientific notations, much an easier way to understand such a long number. Here you have 56 million. Let's make it numerically, 50 000 000. You see I don't place commas is because I leave the space out to understand the number correctly. Next, you would have to place the decimal to the tenths place towards the left. Hence you'll get 5 but what do you do with the zeros? In this case, your zeros are to be exponents of 10 because 10 is the relevant number to the power of any number. Then the amount of decimals you moved will be the exponent. Since you're moving the decimal 7 times, so that indicates your exponent. Your final answer is 5 x 10^7.
