Let's divide 614537 by 21
The aim is to understand the frequency of 21 in 614537.

On to step 1:
6 divided by 21 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 21

Going ahead to step 2:
The number 21 fits into 61 2 times, leaving a remainder of 19.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 42 away from 61, we end up with 19.
Take the next digit (4) from the dividend and append it to 19, then repeat: 194 / 21

Going ahead to step 3:
21 goes into 194 9 times with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 29.0
Subtracting 189 from 194 leaves us with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 21

Let's proceed to step 4:
21 can be fit into 55 2 times, resulting in a remainder of 13.
The number 2 becomes the next digit in our result. 
Result so far: 292.0
Subtract 42 from 55 to get 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 21

Moving on to step 5:
133 divided by 21 is 6 with a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 2926.0
Subtract 126 from 133 to get 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 21

Going ahead to step 6:
The number 21 fits into 77 3 times, leaving a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 29263.0
Subtracting 63 from 77 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 7:
The number 21 fits into 140 6 times, leaving a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 29263.6
If we subtract 126 from 140, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 8:
21 can be fit into 140 6 times, resulting in a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 29263.66
If we subtract 126 from 140, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The quotient of the division is 29263.66, and the remainder is 0.014.