426536 ÷ 20 
Let's see how many times 20 fits into 426536.

Advancing to step 1:
The number 20 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 20

Step 2:
20 can be fit into 42 2 times, resulting in a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 40 from 42, we get 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 20

Going ahead to step 3:
26 divided by 20 is 1 with a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
If we take 20 away from 26, we end up with 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 20

Going ahead to step 4:
20 can be fit into 65 3 times, resulting in a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 213.0
If we take 60 away from 65, we end up with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 20

Moving on to step 5:
The number 20 fits into 53 2 times, leaving a remainder of 13.
Record the quotient 2 as the next digit in the result. 
Result so far: 2132.0
Subtracting 40 from 53 leaves us with 13.
Grab the next digit (6) from the dividend, add it to 13, then carry on: 136 / 20

Going ahead to step 6:
If we divide 136 by 20, we get 6 and a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 21326.0
Subtract 120 from 136 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 7:
If we divide 160 by 20, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 21326.8
Subtracting 160 from 160 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.

Let's proceed to step 8:
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: 21326.8
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.

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: 21326.8
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.

The final result is 21326.8 with a remainder of 0.0.