629257 ÷ 20 
We're looking to find how many times 20 goes into 629257.

Step 1:
If we divide 6 by 20, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 20

Let's proceed to step 2:
The number 20 fits into 62 3 times, leaving a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 2 after subtracting 60 from 62.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 20

Let's proceed to step 3:
The number 20 fits into 29 1 times, leaving a remainder of 9.
The next digit of our result is 1. 
Result so far: 31.0
Deduct 20 from 29 and we're left with 9.
Fetch the next digit (2) from the dividend, attach it to 9 and continue: 92 / 20

Going ahead to step 4:
92 divided by 20 is 4 with a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 314.0
Deduct 80 from 92 and we're left with 12.
Bring next digit (5) of the dividend behind the 12 and repeat the process: 125 / 20

Going ahead to step 5:
20 goes into 125 6 times with a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 3146.0
Subtracting 120 from 125 leaves us with 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 20

Moving on to step 6:
When dividing 57 by 20, we get 2 with a remainder of 17.
Use 2 as the next digit of our solution. 
Result so far: 31462.0
Deduct 40 from 57 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
If we divide 170 by 20, we get 8 and a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 31462.8
If we take 160 away from 170, 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.

Moving on to step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 31462.85
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.

Moving on to step 9:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 31462.85
If we subtract 0 from 0, 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.

Moving on to step 10:
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: 31462.85
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 31462.85 with a remainder of 0.0.