We look at the division of 397607 by 20 
We want to figure out the number of times 397607 can be divided by 20.

Let's proceed to step 1:
The number 20 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 20

Let's proceed to step 2:
20 goes into 39 1 times with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 19 after subtracting 20 from 39.
Fetch the next digit (7) from the dividend, attach it to 19 and continue: 197 / 20

Going ahead to step 3:
20 can be fit into 197 9 times, resulting in a remainder of 17.
The next digit of our result is 9. 
Result so far: 19.0
Subtracting 180 from 197 leaves us with 17.
Take the next digit (6) from the dividend and append it to 17, then repeat: 176 / 20

On to step 4:
20 goes into 176 8 times with a remainder of 16.
The next digit of our result is 8. 
Result so far: 198.0
If we take 160 away from 176, we end up with 16.
Fetch the next digit (0) from the dividend, attach it to 16 and continue: 160 / 20

Going ahead to step 5:
160 divided by 20 is 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 1988.0
Subtract 160 from 160 to get 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 20

On to step 6:
If we divide 7 by 20, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 19880.0
Subtract 0 from 7 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
20 can be fit into 70 3 times, resulting in a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 19880.3
Subtracting 60 from 70 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.

Advancing to step 8:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 19880.35
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.

Moving on 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: 19880.35
Subtracting 0 from 0 leaves us 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 10:
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: 19880.35
Subtracting 0 from 0 leaves us 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.

The final result is 19880.35 with a remainder of 0.0.