215174 ÷ 12 
Our goal is to divide 215174 by 12.

On to step 1:
2 divided by 12 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 12

Moving on to step 2:
12 can be fit into 21 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 12 from 21 to get 9.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 12

Going ahead to step 3:
12 can be fit into 95 7 times, resulting in a remainder of 11.
The next digit of our result is 7. 
Result so far: 17.0
The remainder is 11 after subtracting 84 from 95.
Fetch the next digit (1) from the dividend, attach it to 11 and continue: 111 / 12

On to step 4:
12 can be fit into 111 9 times, resulting in a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 179.0
If we subtract 108 from 111, we get 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 12

Step 5:
If we divide 37 by 12, we get 3 and a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 1793.0
Subtracting 36 from 37 leaves us with 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 12

Moving on to step 6:
The number 12 fits into 14 1 times, leaving a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 17931.0
Deduct 12 from 14 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
When dividing 20 by 12, we get 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 17931.1
If we subtract 12 from 20, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 8:
12 goes into 80 6 times with a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 17931.16
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 9:
The number 12 fits into 80 6 times, leaving a remainder of 8.
The next digit of our result is 6. 
Result so far: 17931.166
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 17931.166, with a leftover of 0.0008.