459829 ÷ 20 
We're looking to find how many times 20 goes into 459829.

Let's proceed to step 1:
If we divide 4 by 20, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 20

Step 2:
20 can be fit into 45 2 times, resulting in a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 40 from 45 leaves us with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 20

On to step 3:
If we divide 59 by 20, we get 2 and a remainder of 19.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtract 40 from 59 to get 19.
Grab the next digit (8) from the dividend, add it to 19, then carry on: 198 / 20

On to step 4:
20 can be fit into 198 9 times, resulting in a remainder of 18.
Record the quotient 9 as the next digit in the result. 
Result so far: 229.0
Deduct 180 from 198 and we're left with 18.
Take the next digit (2) from the dividend and append it to 18, then repeat: 182 / 20

Step 5:
The number 20 fits into 182 9 times, leaving a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 2299.0
If we subtract 180 from 182, we get 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 20

Going ahead to step 6:
20 goes into 29 1 times with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 22991.0
Subtract 20 from 29 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
When dividing 90 by 20, we get 4 with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 22991.4
The remainder is 10 after subtracting 80 from 90.
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.
The number 5 becomes the next digit in our result. 
Result so far: 22991.45
If we take 100 away from 100, 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.

Step 9:
0 divided by 20 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 22991.45
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.

Let's proceed to step 10:
If we divide 0 by 20, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 22991.45
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.

After the division, we end up with 22991.45 and a remainder of 0.0.