We divide 879103 by 15
Let's see how many times 15 fits into 879103.

Going ahead to step 1:
If we divide 8 by 15, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 15

Going ahead to step 2:
15 goes into 87 5 times with a remainder of 12.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 75 from 87, we get 12.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 15

Step 3:
15 can be fit into 129 8 times, resulting in a remainder of 9.
Record the quotient 8 as the next digit in the result. 
Result so far: 58.0
The remainder is 9 after subtracting 120 from 129.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 15

Advancing to step 4:
When dividing 91 by 15, we get 6 with a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 586.0
Subtracting 90 from 91 leaves us with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 15

Advancing to step 5:
If we divide 10 by 15, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 5860.0
Subtract 0 from 10 to get 10.
Include the next digit (3) from the dividend after 10, then repeat: 103 / 15

Let's proceed to step 6:
When dividing 103 by 15, we get 6 with a remainder of 13.
The number 6 becomes the next digit in our result. 
Result so far: 58606.0
The remainder is 13 after subtracting 90 from 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 7:
When dividing 130 by 15, we get 8 with a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 58606.8
Subtract 120 from 130 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.

Moving on to step 8:
The number 15 fits into 100 6 times, leaving a remainder of 10.
The next digit of our result is 6. 
Result so far: 58606.86
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
100 divided by 15 is 6 with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 58606.866
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 58606.866 with a remainder of 0.001.