448279 ÷ 12 
Let's see how many times 12 fits into 448279.

Moving on to step 1:
12 goes into 4 0 times 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.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 12

Moving on to step 2:
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: 3.0
If we subtract 36 from 44, we get 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 12

Moving on to step 3:
If we divide 88 by 12, we get 7 and a remainder of 4.
The next digit of our result is 7. 
Result so far: 37.0
Subtract 84 from 88 to get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 12

Let's proceed to step 4:
The number 12 fits into 42 3 times, leaving a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 373.0
If we take 36 away from 42, we end up with 6.
Grab the next digit (7) from the dividend, add it to 6, then carry on: 67 / 12

Let's proceed to step 5:
12 goes into 67 5 times with a remainder of 7.
Put 5 as the next digit of the answer. 
Result so far: 3735.0
Subtracting 60 from 67 leaves us with 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 12

Moving on to step 6:
12 can be fit into 79 6 times, resulting in a remainder of 7.
Write down 6 as next digit of the result. 
Result so far: 37356.0
Subtract 72 from 79 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
The number 12 fits into 70 5 times, leaving a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 37356.5
The remainder is 10 after subtracting 60 from 70.
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 8:
If we divide 100 by 12, we get 8 and a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 37356.58
If we take 96 away from 100, 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.

Moving on to step 9:
If we divide 40 by 12, we get 3 and a remainder of 4.
The next digit of our result is 3. 
Result so far: 37356.583
If we subtract 36 from 40, we get 4.
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 10:
When dividing 40 by 12, we get 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 37356.5833
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.

The final result is 37356.5833 with a remainder of 4e-05.