We divide 631227 by 20
The aim is to understand the frequency of 20 in 631227.

On to step 1:
20 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 20

Going ahead to step 2:
If we divide 63 by 20, we get 3 and a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 60 from 63, we get 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 20

Let's proceed to step 3:
31 divided by 20 is 1 with a remainder of 11.
The next digit of our result is 1. 
Result so far: 31.0
Subtract 20 from 31 to get 11.
Grab the next digit (2) from the dividend, add it to 11, then carry on: 112 / 20

Moving on to step 4:
The number 20 fits into 112 5 times, leaving a remainder of 12.
Write down 5 as next digit of the result. 
Result so far: 315.0
Subtract 100 from 112 to get 12.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 20

Let's proceed to step 5:
If we divide 122 by 20, we get 6 and a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 3156.0
Subtract 120 from 122 to get 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 20

Let's proceed to step 6:
27 divided by 20 is 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 31561.0
Subtracting 20 from 27 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
If we divide 70 by 20, we get 3 and a remainder of 10.
The next digit of our result is 3. 
Result so far: 31561.3
If we take 60 away from 70, we end up 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.

Step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 31561.35
Deduct 100 from 100 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 31561.35
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
If we divide 0 by 20, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 31561.35
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 31561.35 with a remaining 0.0.