718876 ÷ 20 
The aim is to understand the frequency of 20 in 718876.

Step 1:
When dividing 7 by 20, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 20

On to step 2:
The number 20 fits into 71 3 times, leaving a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 60 from 71 and we're left with 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 20

Let's proceed to step 3:
If we divide 118 by 20, we get 5 and a remainder of 18.
The next digit of our result is 5. 
Result so far: 35.0
Deduct 100 from 118 and we're left with 18.
Take the next digit (8) from the dividend and append it to 18, then repeat: 188 / 20

Moving on to step 4:
188 divided by 20 is 9 with a remainder of 8.
The next digit of our result is 9. 
Result so far: 359.0
If we subtract 180 from 188, we get 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 20

Going ahead to step 5:
87 divided by 20 is 4 with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 3594.0
If we take 80 away from 87, we end up with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 20

Going ahead to step 6:
20 can be fit into 76 3 times, resulting in a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 35943.0
If we take 60 away from 76, we end up 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.

Moving on to step 7:
When dividing 160 by 20, we get 8 with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 35943.8
If we take 160 away from 160, 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.

Moving on to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 35943.8
Subtracting 0 from 0 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.

Advancing to step 9:
20 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 35943.8
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.

The quotient of the division is 35943.8, and the remainder is 0.0.