We look at the division of 172818 by 15 
Let's see how many times 15 fits into 172818.

Moving on to step 1:
15 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 15

On to step 2:
If we divide 17 by 15, we get 1 and a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 15 from 17, we get 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 15

Advancing to step 3:
If we divide 22 by 15, we get 1 and a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 11.0
If we subtract 15 from 22, we get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 15

Advancing to step 4:
78 divided by 15 is 5 with a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 115.0
Deduct 75 from 78 and we're left with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 15

Let's proceed to step 5:
When dividing 31 by 15, we get 2 with a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 1152.0
The remainder is 1 after subtracting 30 from 31.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 15

On to step 6:
The number 15 fits into 18 1 times, leaving a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 11521.0
Subtract 15 from 18 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
30 divided by 15 is 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 11521.2
Subtracting 30 from 30 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
0 divided by 15 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 11521.2
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
15 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 11521.2
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 11521.2 with a remaining 0.0.