454208 divided by 12 
We're looking to find how many times 12 goes into 454208.

Moving on to step 1:
When dividing 4 by 12, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 12

On to step 2:
If we divide 45 by 12, we get 3 and a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 36 from 45 leaves us with 9.
Include the next digit (4) from the dividend after 9, then repeat: 94 / 12

Moving on to step 3:
12 goes into 94 7 times with a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 37.0
If we take 84 away from 94, we end up with 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 12

On to step 4:
If we divide 102 by 12, we get 8 and a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 378.0
Subtracting 96 from 102 leaves us with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 12

Let's proceed to step 5:
12 goes into 60 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 3785.0
If we subtract 60 from 60, we get 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 12

On to step 6:
The number 12 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 37850.0
Deduct 0 from 8 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
The number 12 fits into 80 6 times, leaving a remainder of 8.
The next digit of our result is 6. 
Result so far: 37850.6
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 8:
12 can be fit into 80 6 times, resulting in a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 37850.66
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 37850.66 with a remaining 0.008.