We look at the division of 448389 by 15 
We want to divide 448389 by 15.

Moving on to step 1:
4 divided by 15 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 15

Moving on to step 2:
If we divide 44 by 15, we get 2 and a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 30 from 44 and we're left with 14.
Fetch the next digit (8) from the dividend, attach it to 14 and continue: 148 / 15

On to step 3:
When dividing 148 by 15, we get 9 with a remainder of 13.
The next digit of our result is 9. 
Result so far: 29.0
If we subtract 135 from 148, we get 13.
Include the next digit (3) from the dividend after 13, then repeat: 133 / 15

Going ahead to step 4:
The number 15 fits into 133 8 times, leaving a remainder of 13.
Put 8 as the next digit of the answer. 
Result so far: 298.0
If we take 120 away from 133, we end up with 13.
Include the next digit (8) from the dividend after 13, then repeat: 138 / 15

Let's proceed to step 5:
When dividing 138 by 15, we get 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 2989.0
Deduct 135 from 138 and we're left with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 15

Let's proceed to step 6:
The number 15 fits into 39 2 times, leaving a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 29892.0
Deduct 30 from 39 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
If we divide 90 by 15, we get 6 and a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 29892.6
Subtracting 90 from 90 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.

Let's proceed to step 8:
When dividing 0 by 15, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 29892.6
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.

Going ahead to step 9:
15 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 29892.6
Deduct 0 from 0 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.

The final outcome is 29892.6, with a leftover of 0.0.