We look at the division of 455242 by 12 
We want to figure out the number of times 455242 can be divided by 12.

Let's proceed to step 1:
When dividing 4 by 12, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 12

Let's proceed to step 2:
If we divide 45 by 12, we get 3 and a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 36 away from 45, we end up with 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 12

On to step 3:
If we divide 95 by 12, we get 7 and a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
If we take 84 away from 95, we end up with 11.
Bring next digit (2) of the dividend behind the 11 and repeat the process: 112 / 12

Step 4:
112 divided by 12 is 9 with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 379.0
Subtract 108 from 112 to get 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 12

Advancing to step 5:
If we divide 44 by 12, we get 3 and a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 3793.0
The remainder is 8 after subtracting 36 from 44.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 12

Let's proceed to step 6:
82 divided by 12 is 6 with a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 37936.0
If we subtract 72 from 82, we 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.

On to step 7:
100 divided by 12 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 37936.8
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.

Going ahead to step 8:
12 can be fit into 40 3 times, resulting in a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 37936.83
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 37936.833
If we take 36 away from 40, we end up 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.

In conclusion, the division gives 37936.833 with a balance of 0.0004.