Let's divide 429935 by 20
Let's see how many times 20 fits into 429935.

On to step 1:
If we divide 4 by 20, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 20

On to step 2:
When dividing 42 by 20, we get 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 40 from 42, we get 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 20

Advancing to step 3:
If we divide 29 by 20, we get 1 and a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Subtracting 20 from 29 leaves us with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 20

Step 4:
20 can be fit into 99 4 times, resulting in a remainder of 19.
The number 4 becomes the next digit in our result. 
Result so far: 214.0
If we subtract 80 from 99, we get 19.
Append the next digit (3) from the dividend to 19 and continue with: 193 / 20

Moving on to step 5:
The number 20 fits into 193 9 times, leaving a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 2149.0
Deduct 180 from 193 and we're left with 13.
Fetch the next digit (5) from the dividend, attach it to 13 and continue: 135 / 20

Advancing to step 6:
20 goes into 135 6 times with a remainder of 15.
Put 6 as the next digit of the answer. 
Result so far: 21496.0
The remainder is 15 after subtracting 120 from 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
20 goes into 150 7 times with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 21496.7
If we take 140 away from 150, 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:
20 goes into 100 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 21496.75
Deduct 100 from 100 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.

Going ahead to step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 21496.75
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.

Going ahead to step 10:
20 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 21496.75
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.

After the division, we end up with 21496.75 and a remainder of 0.0.