We divide 70745521 by 502
The aim is to understand the frequency of 502 in 70745521.

Going ahead to step 1:
If we divide 7 by 502, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 502

On to step 2:
502 goes into 70 0 times with a remainder of 70.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 70 after subtracting 0 from 70.
Bring next digit (7) of the dividend behind the 70 and repeat the process: 707 / 502

Advancing to step 3:
707 divided by 502 is 1 with a remainder of 205.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 205 after subtracting 502 from 707.
Append the next digit (4) from the dividend to 205 and continue with: 2054 / 502

Let's proceed to step 4:
The number 502 fits into 2054 4 times, leaving a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 14.0
The remainder is 46 after subtracting 2008 from 2054.
Append the next digit (5) from the dividend to 46 and continue with: 465 / 502

Advancing to step 5:
465 divided by 502 is 0 with a remainder of 465.
Use 0 as the next digit of our solution. 
Result so far: 140.0
Subtracting 0 from 465 leaves us with 465.
Bring next digit (5) of the dividend behind the 465 and repeat the process: 4655 / 502

Going ahead to step 6:
The number 502 fits into 4655 9 times, leaving a remainder of 137.
The next digit of our result is 9. 
Result so far: 1409.0
Subtract 4518 from 4655 to get 137.
Take the next digit (2) from the dividend and append it to 137, then repeat: 1372 / 502

On to step 7:
1372 divided by 502 is 2 with a remainder of 368.
Use 2 as the next digit of our solution. 
Result so far: 14092.0
Subtract 1004 from 1372 to get 368.
Bring next digit (1) of the dividend behind the 368 and repeat the process: 3681 / 502

Going ahead to step 8:
502 goes into 3681 7 times with a remainder of 167.
Write down 7 as next digit of the result. 
Result so far: 140927.0
If we take 3514 away from 3681, we end up with 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

Moving on to step 9:
502 can be fit into 1670 3 times, resulting in a remainder of 164.
Use 3 as the next digit of our solution. 
Result so far: 140927.3
If we subtract 1506 from 1670, we get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Let's proceed to step 10:
1640 divided by 502 is 3 with a remainder of 134.
Record the quotient 3 as the next digit in the result. 
Result so far: 140927.33
If we take 1506 away from 1640, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

The quotient of the division is 140927.33, and the remainder is 0.134.