449457 divided by 12 
The aim is to understand the frequency of 12 in 449457.

On to step 1:
12 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (4) from the dividend, attach it to 4 and continue: 44 / 12

Advancing to step 2:
12 goes into 44 3 times with a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 36 from 44, we get 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 12

Step 3:
If we divide 89 by 12, we get 7 and a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 37.0
Subtract 84 from 89 to get 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 12

Let's proceed to step 4:
12 goes into 54 4 times with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 374.0
If we subtract 48 from 54, we get 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 12

Going ahead to step 5:
If we divide 65 by 12, we get 5 and a remainder of 5.
The next digit of our result is 5. 
Result so far: 3745.0
If we subtract 60 from 65, we get 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 12

On to step 6:
57 divided by 12 is 4 with a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 37454.0
Subtract 48 from 57 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
12 can be fit into 90 7 times, resulting in a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 37454.7
Subtracting 84 from 90 leaves us 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.

Step 8:
12 goes into 60 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 37454.75
Deduct 60 from 60 and we're left 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.

On to step 9:
0 divided by 12 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 37454.75
If we take 0 away from 0, 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.

Advancing to step 10:
When dividing 0 by 12, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 37454.75
Subtracting 0 from 0 leaves us 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.

In conclusion, the division gives 37454.75 with a balance of 0.0.