215482 ÷ 12 
We want to divide 215482 by 12.

Let's proceed to step 1:
12 can be fit into 2 0 times, resulting in 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.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 12

Going ahead to step 2:
The number 12 fits into 21 1 times, leaving a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
If we take 12 away from 21, we end up with 9.
Include the next digit (5) from the dividend after 9, then repeat: 95 / 12

Going ahead to step 3:
The number 12 fits into 95 7 times, leaving a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we take 84 away from 95, we end up with 11.
Bring next digit (4) of the dividend behind the 11 and repeat the process: 114 / 12

Step 4:
The number 12 fits into 114 9 times, leaving a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 179.0
Subtract 108 from 114 to get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 12

Step 5:
If we divide 68 by 12, we get 5 and a remainder of 8.
The next digit of our result is 5. 
Result so far: 1795.0
Deduct 60 from 68 and we're left with 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 12

Let's proceed to step 6:
When dividing 82 by 12, we get 6 with a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 17956.0
The remainder is 10 after subtracting 72 from 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
The number 12 fits into 100 8 times, leaving a remainder of 4.
The next digit of our result is 8. 
Result so far: 17956.8
Subtract 96 from 100 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
40 divided by 12 is 3 with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 17956.83
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
When dividing 40 by 12, we get 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 17956.833
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 17956.833, and the remainder is 0.0004.