Let's divide 788286 by 20
The aim is to understand the frequency of 20 in 788286.

Advancing to step 1:
If we divide 7 by 20, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 20

Step 2:
20 goes into 78 3 times with a remainder of 18.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 60 away from 78, we end up with 18.
Bring next digit (8) of the dividend behind the 18 and repeat the process: 188 / 20

Advancing to step 3:
If we divide 188 by 20, we get 9 and a remainder of 8.
The next digit of our result is 9. 
Result so far: 39.0
The remainder is 8 after subtracting 180 from 188.
Take the next digit (2) from the dividend and append it to 8, then repeat: 82 / 20

Moving on to step 4:
20 goes into 82 4 times with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 394.0
If we subtract 80 from 82, we get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 20

Let's proceed to step 5:
28 divided by 20 is 1 with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 3941.0
The remainder is 8 after subtracting 20 from 28.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 20

Going ahead to step 6:
When dividing 86 by 20, we get 4 with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 39414.0
The remainder is 6 after subtracting 80 from 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
20 can be fit into 60 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 39414.3
Subtract 60 from 60 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.

Step 8:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 39414.3
The remainder is 0 after subtracting 0 from 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:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 39414.3
The remainder is 0 after subtracting 0 from 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 final result is 39414.3 with a remainder of 0.0.