Let's divide 406535 by 20
We want to figure out the number of times 406535 can be divided by 20.

Advancing to step 1:
4 divided by 20 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 20

On to step 2:
When dividing 40 by 20, we get 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 2.0
If we take 40 away from 40, we end up with 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 20

Moving on to step 3:
6 divided by 20 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 20.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 20

Advancing to step 4:
65 divided by 20 is 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 203.0
If we subtract 60 from 65, we get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 20

On to step 5:
When dividing 53 by 20, we get 2 with a remainder of 13.
The number 2 becomes the next digit in our result. 
Result so far: 2032.0
Subtract 40 from 53 to get 13.
Bring next digit (5) of the dividend behind the 13 and repeat the process: 135 / 20

Step 6:
If we divide 135 by 20, we get 6 and a remainder of 15.
Record the quotient 6 as the next digit in the result. 
Result so far: 20326.0
Subtract 120 from 135 to 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.

Step 7:
The number 20 fits into 150 7 times, leaving a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 20326.7
If we subtract 140 from 150, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 20326.75
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.

Advancing to step 9:
20 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 20326.75
Subtract 0 from 0 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 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: 20326.75
The remainder is 0 after subtracting 0 from 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 20326.75 and a remainder of 0.0.