21315860 divided by 755 
The aim is to understand the frequency of 755 in 21315860.

Moving on to step 1:
When dividing 2 by 755, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 755

Let's proceed to step 2:
21 divided by 755 is 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Bring next digit (3) of the dividend behind the 21 and repeat the process: 213 / 755

Going ahead to step 3:
755 goes into 213 0 times with a remainder of 213.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 213, we get 213.
Include the next digit (1) from the dividend after 213, then repeat: 2131 / 755

Going ahead to step 4:
755 goes into 2131 2 times with a remainder of 621.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 1510 from 2131 and we're left with 621.
Include the next digit (5) from the dividend after 621, then repeat: 6215 / 755

Going ahead to step 5:
When dividing 6215 by 755, we get 8 with a remainder of 175.
The next digit of our result is 8. 
Result so far: 28.0
If we subtract 6040 from 6215, we get 175.
Include the next digit (8) from the dividend after 175, then repeat: 1758 / 755

Let's proceed to step 6:
If we divide 1758 by 755, we get 2 and a remainder of 248.
Write down 2 as next digit of the result. 
Result so far: 282.0
Subtract 1510 from 1758 to get 248.
Include the next digit (6) from the dividend after 248, then repeat: 2486 / 755

Going ahead to step 7:
755 goes into 2486 3 times with a remainder of 221.
Use 3 as the next digit of our solution. 
Result so far: 2823.0
Subtracting 2265 from 2486 leaves us with 221.
Fetch the next digit (0) from the dividend, attach it to 221 and continue: 2210 / 755

Advancing to step 8:
When dividing 2210 by 755, we get 2 with a remainder of 700.
Put 2 as the next digit of the answer. 
Result so far: 28232.0
If we subtract 1510 from 2210, we get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

On to step 9:
When dividing 7000 by 755, we get 9 with a remainder of 205.
Put 9 as the next digit of the answer. 
Result so far: 28232.9
Subtract 6795 from 7000 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

On to step 10:
When dividing 2050 by 755, we get 2 with a remainder of 540.
The next digit of our result is 2. 
Result so far: 28232.92
If we subtract 1510 from 2050, we get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Moving on to step 11:
755 can be fit into 5400 7 times, resulting in a remainder of 115.
The number 7 becomes the next digit in our result. 
Result so far: 28232.927
If we subtract 5285 from 5400, we get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

On to step 12:
755 goes into 1150 1 times with a remainder of 395.
The next digit of our result is 1. 
Result so far: 28232.9271
Subtract 755 from 1150 to get 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Moving on to step 13:
The number 755 fits into 3950 5 times, leaving a remainder of 175.
The next digit of our result is 5. 
Result so far: 28232.92715
If we take 3775 away from 3950, we end up with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Step 14:
1750 divided by 755 is 2 with a remainder of 240.
The number 2 becomes the next digit in our result. 
Result so far: 28232.927152
If we subtract 1510 from 1750, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 15:
If we divide 2400 by 755, we get 3 and a remainder of 135.
Put 3 as the next digit of the answer. 
Result so far: 28232.9271523
Subtract 2265 from 2400 to get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Going ahead to step 16:
The number 755 fits into 1350 1 times, leaving a remainder of 595.
The number 1 becomes the next digit in our result. 
Result so far: 28232.92715231
The remainder is 595 after subtracting 755 from 1350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

The quotient of the division is 28232.92715231, and the remainder is 5.95e-07.