Let's divide 21657 by 53
The aim is to understand the frequency of 53 in 21657.

Going ahead to step 1:
53 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 53

Going ahead to step 2:
53 goes into 21 0 times with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Grab the next digit (6) from the dividend, add it to 21, then carry on: 216 / 53

Step 3:
216 divided by 53 is 4 with a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 212 from 216 leaves us with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 53

Let's proceed to step 4:
The number 53 fits into 45 0 times, leaving a remainder of 45.
Put 0 as the next digit of the answer. 
Result so far: 40.0
If we subtract 0 from 45, we get 45.
Grab the next digit (7) from the dividend, add it to 45, then carry on: 457 / 53

Going ahead to step 5:
If we divide 457 by 53, we get 8 and a remainder of 33.
Write down 8 as next digit of the result. 
Result so far: 408.0
If we subtract 424 from 457, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 6:
If we divide 330 by 53, we get 6 and a remainder of 12.
The next digit of our result is 6. 
Result so far: 408.6
If we take 318 away from 330, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
When dividing 120 by 53, we get 2 with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 408.62
Deduct 106 from 120 and we're left 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.

Advancing to step 8:
The number 53 fits into 140 2 times, leaving a remainder of 34.
The next digit of our result is 2. 
Result so far: 408.622
If we subtract 106 from 140, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The quotient of the division is 408.622, and the remainder is 0.0034.