We look at the division of 61651 by 20 
The aim is to understand the frequency of 20 in 61651.

Going ahead to step 1:
20 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 20

Let's proceed to step 2:
The number 20 fits into 61 3 times, leaving a remainder of 1.
The next digit of our result is 3. 
Result so far: 3.0
If we take 60 away from 61, we end up with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 20

Moving on to step 3:
16 divided by 20 is 0 with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
If we take 0 away from 16, we end up with 16.
Bring next digit (5) of the dividend behind the 16 and repeat the process: 165 / 20

On to step 4:
20 goes into 165 8 times with a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 308.0
If we take 160 away from 165, we end up with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 20

Step 5:
When dividing 51 by 20, we get 2 with a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 3082.0
Deduct 40 from 51 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 6:
The number 20 fits into 110 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 3082.5
Deduct 100 from 110 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
When dividing 100 by 20, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 3082.55
Subtract 100 from 100 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 3082.55, and the remainder is 0.0.