500 divided by 5280 can be written as a fraction and then reduced to 25/264. This is .094697.
By writing it as a fraction and reducing you can see that it is very close to 25/250 which is .1
Since the bottom number, the denominator is bigger, the fraction is less the .1 by a little bit.
This lets you estimate the answer and also know that when you get .09467 that you are in the right ball park.
5280 divided in to 4 = 1320
880
660
There are 5280 feet in one mile. Therefore, 500 miles is equal to 500 x 5280 = 2640000 feet.
1.1364
0.0114
5
4.224
67.5
3.0909
11.3636
3.4091