We divide 312865 by 12
We're looking to find how many times 12 goes into 312865.

Moving on to step 1:
If we divide 3 by 12, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
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 / 12

On to step 2:
The number 12 fits into 31 2 times, leaving a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 24 from 31 to get 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 12

Moving on to step 3:
72 divided by 12 is 6 with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 26.0
Deduct 72 from 72 and we're left with 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 12

On to step 4:
8 divided by 12 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 260.0
If we subtract 0 from 8, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 12

Going ahead to step 5:
If we divide 86 by 12, we get 7 and a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 2607.0
If we subtract 84 from 86, we get 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 12

Moving on to step 6:
The number 12 fits into 25 2 times, leaving a remainder of 1.
The next digit of our result is 2. 
Result so far: 26072.0
Subtracting 24 from 25 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
The number 12 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 26072.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
12 goes into 100 8 times with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 26072.08
Deduct 96 from 100 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
12 goes into 40 3 times with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 26072.083
Subtracting 36 from 40 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 10:
If we divide 40 by 12, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 26072.0833
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 26072.0833, and the remainder is 4e-05.