We divide 312321 by 72
We're looking to find how many times 72 goes into 312321.

Step 1:
72 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 72

Moving on to step 2:
The number 72 fits into 31 0 times, leaving a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 72

Going ahead to step 3:
If we divide 312 by 72, we get 4 and a remainder of 24.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 288 from 312 leaves us with 24.
Include the next digit (3) from the dividend after 24, then repeat: 243 / 72

Step 4:
If we divide 243 by 72, we get 3 and a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 43.0
Subtracting 216 from 243 leaves us with 27.
Append the next digit (2) from the dividend to 27 and continue with: 272 / 72

On to step 5:
If we divide 272 by 72, we get 3 and a remainder of 56.
The number 3 becomes the next digit in our result. 
Result so far: 433.0
Subtracting 216 from 272 leaves us with 56.
Bring next digit (1) of the dividend behind the 56 and repeat the process: 561 / 72

On to step 6:
The number 72 fits into 561 7 times, leaving a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 4337.0
Deduct 504 from 561 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 7:
If we divide 570 by 72, we get 7 and a remainder of 66.
Write down 7 as next digit of the result. 
Result so far: 4337.7
Deduct 504 from 570 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 8:
If we divide 660 by 72, we get 9 and a remainder of 12.
Record the quotient 9 as the next digit in the result. 
Result so far: 4337.79
If we take 648 away from 660, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 9:
72 can be fit into 120 1 times, resulting in a remainder of 48.
Put 1 as the next digit of the answer. 
Result so far: 4337.791
The remainder is 48 after subtracting 72 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
The number 72 fits into 480 6 times, leaving a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 4337.7916
If we subtract 432 from 480, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 11:
When dividing 480 by 72, we get 6 with a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 4337.79166
Deduct 432 from 480 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The quotient of the division is 4337.79166, and the remainder is 4.8e-05.