We look at the division of 688711 by 20 
The aim is to understand the frequency of 20 in 688711.

Step 1:
If we divide 6 by 20, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 20

On to step 2:
If we divide 68 by 20, we get 3 and a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 60 from 68 and we're left with 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 20

Step 3:
If we divide 88 by 20, we get 4 and a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
Deduct 80 from 88 and we're left with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 20

Advancing to step 4:
When dividing 87 by 20, we get 4 with a remainder of 7.
Write down 4 as next digit of the result. 
Result so far: 344.0
If we subtract 80 from 87, we get 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 20

Moving on to step 5:
The number 20 fits into 71 3 times, leaving a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 3443.0
If we subtract 60 from 71, we get 11.
Include the next digit (1) from the dividend after 11, then repeat: 111 / 20

On to step 6:
If we divide 111 by 20, we get 5 and a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 34435.0
Deduct 100 from 111 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 7:
If we divide 110 by 20, we get 5 and a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 34435.5
If we subtract 100 from 110, we 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:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 34435.55
The remainder is 0 after subtracting 100 from 100.
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 34435.55 with a balance of 0.0.