Let's divide 319723 by 12
Our goal is to divide 319723 by 12.

On to step 1:
12 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 12

Step 2:
12 goes into 31 2 times with a remainder of 7.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 24 from 31 and we're left with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 12

Going ahead to step 3:
If we divide 79 by 12, we get 6 and a remainder of 7.
Use 6 as the next digit of our solution. 
Result so far: 26.0
Subtract 72 from 79 to get 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 12

On to step 4:
When dividing 77 by 12, we get 6 with a remainder of 5.
The next digit of our result is 6. 
Result so far: 266.0
If we subtract 72 from 77, we get 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 12

Moving on to step 5:
The number 12 fits into 52 4 times, leaving a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 2664.0
Deduct 48 from 52 and we're left with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 12

On to step 6:
The number 12 fits into 43 3 times, leaving a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 26643.0
Subtracting 36 from 43 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
70 divided by 12 is 5 with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 26643.5
Subtract 60 from 70 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:
If we divide 100 by 12, we get 8 and a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 26643.58
Subtracting 96 from 100 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.

Let's proceed to step 9:
12 can be fit into 40 3 times, resulting in a remainder of 4.
The next digit of our result is 3. 
Result so far: 26643.583
If we subtract 36 from 40, we 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.

Going ahead to step 10:
40 divided by 12 is 3 with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 26643.5833
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.

Our division results in 26643.5833 with a remaining 4e-05.