Let's divide 191816 by 20
The aim is to understand the frequency of 20 in 191816.

On to step 1:
20 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 20

Let's proceed to step 2:
The number 20 fits into 19 0 times, leaving a remainder of 19.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 19 to get 19.
Fetch the next digit (1) from the dividend, attach it to 19 and continue: 191 / 20

Moving on to step 3:
If we divide 191 by 20, we get 9 and a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 180 from 191 to get 11.
Fetch the next digit (8) from the dividend, attach it to 11 and continue: 118 / 20

Let's proceed to step 4:
118 divided by 20 is 5 with a remainder of 18.
Record the quotient 5 as the next digit in the result. 
Result so far: 95.0
If we take 100 away from 118, we end up with 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 20

Going ahead to step 5:
20 can be fit into 181 9 times, resulting in a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 959.0
Subtracting 180 from 181 leaves us with 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 20

On to step 6:
20 can be fit into 16 0 times, resulting in a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 9590.0
Subtracting 0 from 16 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 7:
When dividing 160 by 20, we get 8 with a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 9590.8
Deduct 160 from 160 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.

Step 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 9590.8
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.

Going ahead to step 9:
0 divided by 20 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 9590.8
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.

Our division results in 9590.8 with a remaining 0.0.