We're dividing 421147 by 20 
The aim is to understand the frequency of 20 in 421147.

Step 1:
4 divided by 20 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 20

On to step 2:
20 goes into 42 2 times with a remainder of 2.
The next digit of our result is 2. 
Result so far: 2.0
If we take 40 away from 42, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 20

Let's proceed to step 3:
When dividing 21 by 20, we get 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtract 20 from 21 to get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 20

Moving on to step 4:
11 divided by 20 is 0 with a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 210.0
Subtracting 0 from 11 leaves us with 11.
Include the next digit (4) from the dividend after 11, then repeat: 114 / 20

Step 5:
20 can be fit into 114 5 times, resulting in a remainder of 14.
Put 5 as the next digit of the answer. 
Result so far: 2105.0
Deduct 100 from 114 and we're left with 14.
Grab the next digit (7) from the dividend, add it to 14, then carry on: 147 / 20

Step 6:
147 divided by 20 is 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 21057.0
If we subtract 140 from 147, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
If we divide 70 by 20, we get 3 and a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 21057.3
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.

Moving on to step 8:
When dividing 100 by 20, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 21057.35
If we take 100 away from 100, we end up 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:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 21057.35
Subtract 0 from 0 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.

Moving on to step 10:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 21057.35
If we subtract 0 from 0, we 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.

In conclusion, the division gives 21057.35 with a balance of 0.0.