Let's divide 312253 by 80
We want to divide 312253 by 80.

Moving on to step 1:
When dividing 3 by 80, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 80

Let's proceed to step 2:
If we divide 31 by 80, we get 0 and a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Fetch the next digit (2) from the dividend, attach it to 31 and continue: 312 / 80

Advancing to step 3:
If we divide 312 by 80, we get 3 and a remainder of 72.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 240 from 312 leaves us with 72.
Take the next digit (2) from the dividend and append it to 72, then repeat: 722 / 80

Step 4:
80 goes into 722 9 times with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 39.0
If we subtract 720 from 722, we get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 80

Let's proceed to step 5:
The number 80 fits into 25 0 times, leaving a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 390.0
Subtract 0 from 25 to get 25.
Take the next digit (3) from the dividend and append it to 25, then repeat: 253 / 80

Going ahead to step 6:
80 goes into 253 3 times with a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 3903.0
If we take 240 away from 253, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
80 can be fit into 130 1 times, resulting in a remainder of 50.
Put 1 as the next digit of the answer. 
Result so far: 3903.1
The remainder is 50 after subtracting 80 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 8:
80 can be fit into 500 6 times, resulting in a remainder of 20.
Record the quotient 6 as the next digit in the result. 
Result so far: 3903.16
Deduct 480 from 500 and we're left 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.

Moving on to step 9:
The number 80 fits into 200 2 times, leaving a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 3903.162
Subtracting 160 from 200 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 3903.1625
Deduct 400 from 400 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.

Advancing to step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 3903.1625
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.

Let's proceed to step 12:
0 divided by 80 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3903.1625
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.

Our division results in 3903.1625 with a remaining 0.0.