We look at the division of 199790 by 20 
We want to divide 199790 by 20.

Moving on to step 1:
20 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 20

Let's proceed to step 2:
The number 20 fits into 19 0 times, leaving a remainder of 19.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Bring next digit (9) of the dividend behind the 19 and repeat the process: 199 / 20

Advancing to step 3:
When dividing 199 by 20, we get 9 with a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we subtract 180 from 199, we get 19.
Take the next digit (7) from the dividend and append it to 19, then repeat: 197 / 20

Moving on to step 4:
20 goes into 197 9 times with a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 99.0
The remainder is 17 after subtracting 180 from 197.
Take the next digit (9) from the dividend and append it to 17, then repeat: 179 / 20

Step 5:
If we divide 179 by 20, we get 8 and a remainder of 19.
Put 8 as the next digit of the answer. 
Result so far: 998.0
The remainder is 19 after subtracting 160 from 179.
Fetch the next digit (0) from the dividend, attach it to 19 and continue: 190 / 20

On to step 6:
20 can be fit into 190 9 times, resulting in a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 9989.0
Deduct 180 from 190 and we're left 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.

Let's proceed to step 7:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 9989.5
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.

Going ahead to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 9989.5
If we take 0 away from 0, 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.

Moving on to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 9989.5
Deduct 0 from 0 and we're left 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.

After the division, we end up with 9989.5 and a remainder of 0.0.