We're dividing 578711 by 20 
The aim is to understand the frequency of 20 in 578711.

Advancing to step 1:
If we divide 5 by 20, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 20

On to step 2:
When dividing 57 by 20, we get 2 with a remainder of 17.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 40 from 57 to get 17.
Grab the next digit (8) from the dividend, add it to 17, then carry on: 178 / 20

On to step 3:
When dividing 178 by 20, we get 8 with a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
Subtracting 160 from 178 leaves us with 18.
Append the next digit (7) from the dividend to 18 and continue with: 187 / 20

Advancing to step 4:
20 can be fit into 187 9 times, resulting in a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 289.0
Deduct 180 from 187 and we're left with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 20

On to step 5:
When dividing 71 by 20, we get 3 with a remainder of 11.
Write down 3 as next digit of the result. 
Result so far: 2893.0
If we take 60 away from 71, we end up with 11.
Take the next digit (1) from the dividend and append it to 11, then repeat: 111 / 20

Advancing to step 6:
20 goes into 111 5 times with a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 28935.0
The remainder is 11 after subtracting 100 from 111.
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:
110 divided by 20 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 28935.5
Subtracting 100 from 110 leaves us with 10.
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.
The next digit of our result is 5. 
Result so far: 28935.55
If we subtract 100 from 100, 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 28935.55 with a balance of 0.0.