We look at the division of 117543 by 20 
The aim is to understand the frequency of 20 in 117543.

Let's proceed to step 1:
When dividing 1 by 20, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 20

On to step 2:
11 divided by 20 is 0 with a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 11 leaves us with 11.
Take the next digit (7) from the dividend and append it to 11, then repeat: 117 / 20

Step 3:
The number 20 fits into 117 5 times, leaving a remainder of 17.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 17 after subtracting 100 from 117.
Bring next digit (5) of the dividend behind the 17 and repeat the process: 175 / 20

Advancing to step 4:
The number 20 fits into 175 8 times, leaving a remainder of 15.
Put 8 as the next digit of the answer. 
Result so far: 58.0
Subtracting 160 from 175 leaves us with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 20

Moving on to step 5:
If we divide 154 by 20, we get 7 and a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 587.0
Deduct 140 from 154 and we're left with 14.
Append the next digit (3) from the dividend to 14 and continue with: 143 / 20

Step 6:
143 divided by 20 is 7 with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 5877.0
The remainder is 3 after subtracting 140 from 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
If we divide 30 by 20, we get 1 and a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 5877.1
The remainder is 10 after subtracting 20 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
100 divided by 20 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 5877.15
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.

Let's proceed to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 5877.15
If we take 0 away from 0, 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 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: 5877.15
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 5877.15 with a balance of 0.0.