312281 ÷ 15 
We're looking to find how many times 15 goes into 312281.

On to step 1:
The number 15 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 15

Going ahead to step 2:
15 can be fit into 31 2 times, resulting in a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 1 after subtracting 30 from 31.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 15

Step 3:
15 goes into 12 0 times with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtract 0 from 12 to get 12.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 15

Going ahead to step 4:
122 divided by 15 is 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 208.0
The remainder is 2 after subtracting 120 from 122.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 15

Let's proceed to step 5:
28 divided by 15 is 1 with a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 2081.0
The remainder is 13 after subtracting 15 from 28.
Grab the next digit (1) from the dividend, add it to 13, then carry on: 131 / 15

Advancing to step 6:
15 can be fit into 131 8 times, resulting in a remainder of 11.
Record the quotient 8 as the next digit in the result. 
Result so far: 20818.0
If we subtract 120 from 131, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
110 divided by 15 is 7 with a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 20818.7
Subtract 105 from 110 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
When dividing 50 by 15, we get 3 with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 20818.73
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
The number 15 fits into 50 3 times, leaving a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 20818.733
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 20818.733 with a remainder of 0.0005.