80426 ÷ 20 
Let's see how many times 20 fits into 80426.

Going ahead to step 1:
20 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 20

Advancing to step 2:
If we divide 80 by 20, we get 4 and a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 80 from 80 to get 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 20

Moving on to step 3:
The number 20 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 40.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 20

Going ahead to step 4:
If we divide 42 by 20, we get 2 and a remainder of 2.
The next digit of our result is 2. 
Result so far: 402.0
Subtract 40 from 42 to get 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 20

On to step 5:
The number 20 fits into 26 1 times, leaving a remainder of 6.
The next digit of our result is 1. 
Result so far: 4021.0
If we subtract 20 from 26, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 6:
When dividing 60 by 20, we get 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 4021.3
If we take 60 away from 60, 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.

Moving on to step 7:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 4021.3
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.

Advancing to step 8:
0 divided by 20 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4021.3
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 4021.3 and a remainder of 0.0.