We're dividing 43218 by 15 
We want to divide 43218 by 15.

On to step 1:
15 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 15

Advancing to step 2:
43 divided by 15 is 2 with a remainder of 13.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 30 from 43 leaves us with 13.
Fetch the next digit (2) from the dividend, attach it to 13 and continue: 132 / 15

Moving on to step 3:
15 can be fit into 132 8 times, resulting in a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 28.0
If we take 120 away from 132, we end up with 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 15

Step 4:
15 goes into 121 8 times with a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 288.0
Deduct 120 from 121 and we're left with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 15

Let's proceed to step 5:
15 goes into 18 1 times with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 2881.0
If we subtract 15 from 18, we 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.

Moving on to step 6:
The number 15 fits into 30 2 times, leaving a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 2881.2
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.

Advancing to step 7:
When dividing 0 by 15, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 2881.2
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.

Advancing to step 8:
15 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 2881.2
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.

The final result is 2881.2 with a remainder of 0.0.