629588 ÷ 20 
We want to divide 629588 by 20.

Step 1:
6 divided by 20 is 0 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.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 20

Going ahead to step 2:
If we divide 62 by 20, we get 3 and a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 60 from 62, we get 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 20

Step 3:
When dividing 29 by 20, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 31.0
If we subtract 20 from 29, we get 9.
Bring next digit (5) of the dividend behind the 9 and repeat the process: 95 / 20

Step 4:
95 divided by 20 is 4 with a remainder of 15.
Write down 4 as next digit of the result. 
Result so far: 314.0
If we subtract 80 from 95, we get 15.
Append the next digit (8) from the dividend to 15 and continue with: 158 / 20

On to step 5:
158 divided by 20 is 7 with a remainder of 18.
Use 7 as the next digit of our solution. 
Result so far: 3147.0
Subtract 140 from 158 to get 18.
Append the next digit (8) from the dividend to 18 and continue with: 188 / 20

Advancing to step 6:
The number 20 fits into 188 9 times, leaving a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 31479.0
Subtract 180 from 188 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
20 goes into 80 4 times with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 31479.4
Subtracting 80 from 80 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.

Advancing to step 8:
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: 31479.4
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.

Going ahead to step 9:
20 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 31479.4
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.

The final result is 31479.4 with a remainder of 0.0.