We divide 402254 by 20
Let's see how many times 20 fits into 402254.

Step 1:
20 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 20

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

Moving on to step 3:
The number 20 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 20

Going ahead to step 4:
20 can be fit into 22 1 times, resulting in a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 201.0
Subtract 20 from 22 to get 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 20

On to step 5:
When dividing 25 by 20, we get 1 with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 2011.0
The remainder is 5 after subtracting 20 from 25.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 20

Advancing to step 6:
If we divide 54 by 20, we get 2 and a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 20112.0
Subtract 40 from 54 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 7:
140 divided by 20 is 7 with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 20112.7
Subtract 140 from 140 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.

Advancing to step 8:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 20112.7
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.

On to step 9:
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: 20112.7
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.

The final outcome is 20112.7, with a leftover of 0.0.