We're dividing 789949 by 20 
The aim is to understand the frequency of 20 in 789949.

Going ahead to step 1:
If we divide 7 by 20, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 20

On to step 2:
The number 20 fits into 78 3 times, leaving a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 18 after subtracting 60 from 78.
Fetch the next digit (9) from the dividend, attach it to 18 and continue: 189 / 20

Let's proceed to step 3:
20 can be fit into 189 9 times, resulting in a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 39.0
Subtract 180 from 189 to get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 20

Moving on to step 4:
20 can be fit into 99 4 times, resulting in a remainder of 19.
Record the quotient 4 as the next digit in the result. 
Result so far: 394.0
If we take 80 away from 99, we end up with 19.
Append the next digit (4) from the dividend to 19 and continue with: 194 / 20

Advancing to step 5:
20 can be fit into 194 9 times, resulting in a remainder of 14.
The number 9 becomes the next digit in our result. 
Result so far: 3949.0
If we subtract 180 from 194, we get 14.
Fetch the next digit (9) from the dividend, attach it to 14 and continue: 149 / 20

Moving on to step 6:
If we divide 149 by 20, we get 7 and a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 39497.0
Deduct 140 from 149 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
The number 20 fits into 90 4 times, leaving a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 39497.4
Subtract 80 from 90 to 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.

On to step 8:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 39497.45
If we take 100 away from 100, 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:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 39497.45
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.

Step 10:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 39497.45
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.

The final result is 39497.45 with a remainder of 0.0.