12396500 ÷ 331 
Let's see how many times 331 fits into 12396500.

Step 1:
The number 331 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 331

Moving on to step 2:
331 can be fit into 12 0 times, resulting in a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Bring next digit (3) of the dividend behind the 12 and repeat the process: 123 / 331

On to step 3:
If we divide 123 by 331, we get 0 and a remainder of 123.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 123 leaves us with 123.
Include the next digit (9) from the dividend after 123, then repeat: 1239 / 331

On to step 4:
The number 331 fits into 1239 3 times, leaving a remainder of 246.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 246 after subtracting 993 from 1239.
Fetch the next digit (6) from the dividend, attach it to 246 and continue: 2466 / 331

Let's proceed to step 5:
If we divide 2466 by 331, we get 7 and a remainder of 149.
Use 7 as the next digit of our solution. 
Result so far: 37.0
The remainder is 149 after subtracting 2317 from 2466.
Include the next digit (5) from the dividend after 149, then repeat: 1495 / 331

Going ahead to step 6:
1495 divided by 331 is 4 with a remainder of 171.
Put 4 as the next digit of the answer. 
Result so far: 374.0
Deduct 1324 from 1495 and we're left with 171.
Bring next digit (0) of the dividend behind the 171 and repeat the process: 1710 / 331

Let's proceed to step 7:
When dividing 1710 by 331, we get 5 with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 3745.0
Subtract 1655 from 1710 to get 55.
Include the next digit (0) from the dividend after 55, then repeat: 550 / 331

On to step 8:
The number 331 fits into 550 1 times, leaving a remainder of 219.
The number 1 becomes the next digit in our result. 
Result so far: 37451.0
Subtracting 331 from 550 leaves us with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

On to step 9:
2190 divided by 331 is 6 with a remainder of 204.
The next digit of our result is 6. 
Result so far: 37451.6
The remainder is 204 after subtracting 1986 from 2190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Step 10:
If we divide 2040 by 331, we get 6 and a remainder of 54.
The next digit of our result is 6. 
Result so far: 37451.66
Subtracting 1986 from 2040 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Our division results in 37451.66 with a remaining 0.054.