We divide 452631 by 12
Let's see how many times 12 fits into 452631.

Going ahead to step 1:
The number 12 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 12

Step 2:
12 can be fit into 45 3 times, resulting in a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 36 from 45 and we're left with 9.
Fetch the next digit (2) from the dividend, attach it to 9 and continue: 92 / 12

Advancing to step 3:
92 divided by 12 is 7 with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 37.0
If we subtract 84 from 92, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 12

Moving on to step 4:
If we divide 86 by 12, we get 7 and a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 377.0
Subtract 84 from 86 to get 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 12

Moving on to step 5:
When dividing 23 by 12, we get 1 with a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 3771.0
Subtracting 12 from 23 leaves us with 11.
Bring next digit (1) of the dividend behind the 11 and repeat the process: 111 / 12

Moving on to step 6:
If we divide 111 by 12, we get 9 and a remainder of 3.
The next digit of our result is 9. 
Result so far: 37719.0
Deduct 108 from 111 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
12 can be fit into 30 2 times, resulting in a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 37719.2
If we take 24 away from 30, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 8:
60 divided by 12 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 37719.25
If we take 60 away from 60, 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.

Step 9:
12 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 37719.25
Subtract 0 from 0 to 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 10:
The number 12 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 37719.25
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 37719.25 with a remaining 0.0.