498575 divided by 20 
We're looking to find how many times 20 goes into 498575.

Let's proceed to step 1:
4 divided by 20 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 20

Let's proceed to step 2:
If we divide 49 by 20, we get 2 and a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 40 from 49 leaves us with 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 20

Moving on to step 3:
20 can be fit into 98 4 times, resulting in a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Subtracting 80 from 98 leaves us with 18.
Bring next digit (5) of the dividend behind the 18 and repeat the process: 185 / 20

Let's proceed to step 4:
If we divide 185 by 20, we get 9 and a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 249.0
Deduct 180 from 185 and we're left with 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 20

Moving on to step 5:
The number 20 fits into 57 2 times, leaving a remainder of 17.
The number 2 becomes the next digit in our result. 
Result so far: 2492.0
Subtract 40 from 57 to get 17.
Fetch the next digit (5) from the dividend, attach it to 17 and continue: 175 / 20

Let's proceed to step 6:
175 divided by 20 is 8 with a remainder of 15.
Write down 8 as next digit of the result. 
Result so far: 24928.0
If we subtract 160 from 175, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
If we divide 150 by 20, we get 7 and a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 24928.7
The remainder is 10 after subtracting 140 from 150.
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.
The number 5 becomes the next digit in our result. 
Result so far: 24928.75
Subtract 100 from 100 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.

Going ahead to step 9:
20 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 24928.75
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.

On to step 10:
When dividing 0 by 20, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 24928.75
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.

After the division, we end up with 24928.75 and a remainder of 0.0.