We look at the division of 297877 by 20 
The aim is to understand the frequency of 20 in 297877.

Step 1:
If we divide 2 by 20, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 20

Going ahead to step 2:
20 goes into 29 1 times with a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
If we take 20 away from 29, we end up with 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 20

On to step 3:
If we divide 97 by 20, we get 4 and a remainder of 17.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Deduct 80 from 97 and we're left with 17.
Fetch the next digit (8) from the dividend, attach it to 17 and continue: 178 / 20

Let's proceed to step 4:
20 goes into 178 8 times with a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 148.0
Deduct 160 from 178 and we're left with 18.
Grab the next digit (7) from the dividend, add it to 18, then carry on: 187 / 20

Step 5:
20 goes into 187 9 times with a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 1489.0
The remainder is 7 after subtracting 180 from 187.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 20

Advancing to step 6:
The number 20 fits into 77 3 times, leaving a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 14893.0
If we subtract 60 from 77, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 7:
20 goes into 170 8 times with a remainder of 10.
Write down 8 as next digit of the result. 
Result so far: 14893.8
Subtract 160 from 170 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
100 divided by 20 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 14893.85
Subtracting 100 from 100 leaves us 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.

Step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 14893.85
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
20 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 14893.85
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.

The final outcome is 14893.85, with a leftover of 0.0.