We're dividing 13173 by 15 
We want to divide 13173 by 15.

Going ahead to step 1:
When dividing 1 by 15, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 15

Step 2:
The number 15 fits into 13 0 times, leaving a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Grab the next digit (1) from the dividend, add it to 13, then carry on: 131 / 15

Step 3:
When dividing 131 by 15, we get 8 with a remainder of 11.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Deduct 120 from 131 and we're left with 11.
Grab the next digit (7) from the dividend, add it to 11, then carry on: 117 / 15

Let's proceed to step 4:
The number 15 fits into 117 7 times, leaving a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 87.0
Deduct 105 from 117 and we're left with 12.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 15

Advancing to step 5:
15 can be fit into 123 8 times, resulting in a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 878.0
Subtracting 120 from 123 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 6:
If we divide 30 by 15, we get 2 and a remainder of 0.
The next digit of our result is 2. 
Result so far: 878.2
If we subtract 30 from 30, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
If we divide 0 by 15, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 878.2
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
0 divided by 15 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 878.2
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 878.2 with a remaining 0.0.