Let's divide 312002 by 80
Our goal is to divide 312002 by 80.

Going ahead to step 1:
When dividing 3 by 80, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 80

Moving on to step 2:
The number 80 fits into 31 0 times, leaving a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Take the next digit (2) from the dividend and append it to 31, then repeat: 312 / 80

Going ahead to step 3:
312 divided by 80 is 3 with a remainder of 72.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 72 after subtracting 240 from 312.
Bring next digit (0) of the dividend behind the 72 and repeat the process: 720 / 80

Moving on to step 4:
80 can be fit into 720 9 times, resulting in a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 39.0
Subtract 720 from 720 to get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 80

Let's proceed to step 5:
When dividing 0 by 80, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 390.0
Deduct 0 from 0 and we're left with 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 80

Step 6:
When dividing 2 by 80, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 3900.0
If we subtract 0 from 2, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 7:
20 divided by 80 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 3900.0
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 8:
80 can be fit into 200 2 times, resulting in a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 3900.02
The remainder is 40 after subtracting 160 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
When dividing 400 by 80, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 3900.025
The remainder is 0 after subtracting 400 from 400.
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:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 3900.025
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 11:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 3900.025
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 quotient of the division is 3900.025, and the remainder is 0.0.