We're dividing 788987 by 20 
We want to divide 788987 by 20.

Going ahead to step 1:
7 divided by 20 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 20

Advancing to step 2:
If we divide 78 by 20, we get 3 and a remainder of 18.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 18 after subtracting 60 from 78.
Fetch the next digit (8) from the dividend, attach it to 18 and continue: 188 / 20

Step 3:
The number 20 fits into 188 9 times, leaving a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Subtract 180 from 188 to get 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 20

On to step 4:
When dividing 89 by 20, we get 4 with a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 394.0
If we subtract 80 from 89, we get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 20

Advancing to step 5:
20 goes into 98 4 times with a remainder of 18.
Write down 4 as next digit of the result. 
Result so far: 3944.0
The remainder is 18 after subtracting 80 from 98.
Append the next digit (7) from the dividend to 18 and continue with: 187 / 20

On to step 6:
When dividing 187 by 20, we get 9 with a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 39449.0
Subtracting 180 from 187 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
When dividing 70 by 20, we get 3 with a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 39449.3
If we take 60 away from 70, we end up 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.
Put 5 as the next digit of the answer. 
Result so far: 39449.35
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.

Going ahead to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 39449.35
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.

On to step 10:
0 divided by 20 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 39449.35
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 39449.35 with a remainder of 0.0.