311457 ÷ 80 
Our goal is to divide 311457 by 80.

Going ahead to step 1:
When dividing 3 by 80, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 80

Moving on to step 2:
80 goes into 31 0 times with a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Include the next digit (1) from the dividend after 31, then repeat: 311 / 80

Going ahead to step 3:
80 goes into 311 3 times with a remainder of 71.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 240 from 311 leaves us with 71.
Take the next digit (4) from the dividend and append it to 71, then repeat: 714 / 80

Going ahead to step 4:
The number 80 fits into 714 8 times, leaving a remainder of 74.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
Subtract 640 from 714 to get 74.
Grab the next digit (5) from the dividend, add it to 74, then carry on: 745 / 80

On to step 5:
80 can be fit into 745 9 times, resulting in a remainder of 25.
Write down 9 as next digit of the result. 
Result so far: 389.0
If we take 720 away from 745, we end up with 25.
Take the next digit (7) from the dividend and append it to 25, then repeat: 257 / 80

Going ahead to step 6:
If we divide 257 by 80, we get 3 and a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 3893.0
The remainder is 17 after subtracting 240 from 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
The number 80 fits into 170 2 times, leaving a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 3893.2
Subtracting 160 from 170 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
80 goes into 100 1 times with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 3893.21
Subtract 80 from 100 to get 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:
When dividing 200 by 80, we get 2 with a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 3893.212
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.

Moving on to step 10:
80 goes into 400 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 3893.2125
If we subtract 400 from 400, 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.

On to step 11:
80 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 3893.2125
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 12:
The number 80 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3893.2125
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.

The quotient of the division is 3893.2125, and the remainder is 0.0.