We divide 868721 by 15
Let's see how many times 15 fits into 868721.

On to step 1:
15 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 15

Moving on to step 2:
When dividing 86 by 15, we get 5 with a remainder of 11.
The next digit of our result is 5. 
Result so far: 5.0
Deduct 75 from 86 and we're left with 11.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 15

On to step 3:
When dividing 118 by 15, we get 7 with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 57.0
Deduct 105 from 118 and we're left with 13.
Grab the next digit (7) from the dividend, add it to 13, then carry on: 137 / 15

Step 4:
When dividing 137 by 15, we get 9 with a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 579.0
The remainder is 2 after subtracting 135 from 137.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 15

Moving on to step 5:
15 can be fit into 22 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 5791.0
The remainder is 7 after subtracting 15 from 22.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 15

Going ahead to step 6:
If we divide 71 by 15, we get 4 and a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 57914.0
If we subtract 60 from 71, 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.

Advancing to step 7:
15 goes into 110 7 times with a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 57914.7
The remainder is 5 after subtracting 105 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
When dividing 50 by 15, we get 3 with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 57914.73
Subtracting 45 from 50 leaves us 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.

Step 9:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 57914.733
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 outcome is 57914.733, with a leftover of 0.0005.