Let's divide 663607 by 20
Let's see how many times 20 fits into 663607.

On to step 1:
20 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 20

Moving on to step 2:
66 divided by 20 is 3 with a remainder of 6.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 60 from 66 and we're left with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 20

Step 3:
63 divided by 20 is 3 with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 33.0
If we take 60 away from 63, we end up with 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 20

Moving on to step 4:
20 goes into 36 1 times with a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 331.0
If we subtract 20 from 36, we get 16.
Fetch the next digit (0) from the dividend, attach it to 16 and continue: 160 / 20

Advancing to step 5:
20 can be fit into 160 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 3318.0
If we subtract 160 from 160, we get 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 20

Advancing to step 6:
The number 20 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 33180.0
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.

Going ahead to step 7:
20 goes into 70 3 times with a remainder of 10.
The next digit of our result is 3. 
Result so far: 33180.3
If we subtract 60 from 70, we 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:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 33180.35
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.

On to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 33180.35
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.

Advancing to step 10:
When dividing 0 by 20, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 33180.35
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.

Our division results in 33180.35 with a remaining 0.0.