We look at the division of 402112 by 80 
We want to divide 402112 by 80.

Step 1:
If we divide 4 by 80, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 80

Let's proceed to step 2:
When dividing 40 by 80, we get 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Take the next digit (2) from the dividend and append it to 40, then repeat: 402 / 80

Going ahead to step 3:
If we divide 402 by 80, we get 5 and a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 400 from 402 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 80

Advancing to step 4:
If we divide 21 by 80, we get 0 and a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
Subtract 0 from 21 to get 21.
Append the next digit (1) from the dividend to 21 and continue with: 211 / 80

Let's proceed to step 5:
211 divided by 80 is 2 with a remainder of 51.
Put 2 as the next digit of the answer. 
Result so far: 502.0
If we subtract 160 from 211, we get 51.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 80

Advancing to step 6:
When dividing 512 by 80, we get 6 with a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 5026.0
The remainder is 32 after subtracting 480 from 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 7:
When dividing 320 by 80, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 5026.4
Deduct 320 from 320 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 8:
80 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 5026.4
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.

On to step 9:
80 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 5026.4
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.

The final result is 5026.4 with a remainder of 0.0.