Let's divide 575643 by 20
We're looking to find how many times 20 goes into 575643.

Advancing to step 1:
The number 20 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 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 2:
20 goes into 57 2 times with a remainder of 17.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 40 from 57, we get 17.
Grab the next digit (5) from the dividend, add it to 17, then carry on: 175 / 20

Step 3:
20 goes into 175 8 times with a remainder of 15.
Write down 8 as next digit of the result. 
Result so far: 28.0
Subtract 160 from 175 to get 15.
Fetch the next digit (6) from the dividend, attach it to 15 and continue: 156 / 20

On to step 4:
When dividing 156 by 20, we get 7 with a remainder of 16.
The next digit of our result is 7. 
Result so far: 287.0
If we take 140 away from 156, we end up with 16.
Bring next digit (4) of the dividend behind the 16 and repeat the process: 164 / 20

Advancing to step 5:
When dividing 164 by 20, we get 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 2878.0
Subtract 160 from 164 to get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 20

Moving on to step 6:
The number 20 fits into 43 2 times, leaving a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 28782.0
The remainder is 3 after subtracting 40 from 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
The number 20 fits into 30 1 times, leaving a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 28782.1
If we take 20 away from 30, 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.

Let's proceed to step 8:
20 can be fit into 100 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 28782.15
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.
The number 0 becomes the next digit in our result. 
Result so far: 28782.15
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.

Moving on to step 10:
20 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 28782.15
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 28782.15 and a remainder of 0.0.