448239 ÷ 31 
We're looking to find how many times 31 goes into 448239.

Step 1:
4 divided by 31 is 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.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 31

Let's proceed to step 2:
When dividing 44 by 31, we get 1 with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 31 from 44 to get 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 31

Moving on to step 3:
When dividing 138 by 31, we get 4 with a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtract 124 from 138 to get 14.
Take the next digit (2) from the dividend and append it to 14, then repeat: 142 / 31

Step 4:
142 divided by 31 is 4 with a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 144.0
Deduct 124 from 142 and we're left with 18.
Bring next digit (3) of the dividend behind the 18 and repeat the process: 183 / 31

On to step 5:
If we divide 183 by 31, we get 5 and a remainder of 28.
The next digit of our result is 5. 
Result so far: 1445.0
Subtracting 155 from 183 leaves us with 28.
Include the next digit (9) from the dividend after 28, then repeat: 289 / 31

On to step 6:
31 goes into 289 9 times with a remainder of 10.
Put 9 as the next digit of the answer. 
Result so far: 14459.0
Subtract 279 from 289 to 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.

Let's proceed to step 7:
If we divide 100 by 31, we get 3 and a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 14459.3
Deduct 93 from 100 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 8:
31 can be fit into 70 2 times, resulting in a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 14459.32
Subtracting 62 from 70 leaves us 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 9:
The number 31 fits into 80 2 times, leaving a remainder of 18.
The next digit of our result is 2. 
Result so far: 14459.322
If we take 62 away from 80, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The quotient of the division is 14459.322, and the remainder is 0.0018.