215083 divided by 12 
We're looking to find how many times 12 goes into 215083.

Let's proceed 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
Deduct 0 from 2 and we're left with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 12

Moving on to step 2:
When dividing 21 by 12, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 12 from 21 and we're left with 9.
Bring next digit (5) of the dividend behind the 9 and repeat the process: 95 / 12

On to step 3:
12 goes into 95 7 times with a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 84 from 95 leaves us with 11.
Grab the next digit (0) from the dividend, add it to 11, then carry on: 110 / 12

Advancing to step 4:
12 goes into 110 9 times with a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 179.0
The remainder is 2 after subtracting 108 from 110.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 12

Let's proceed to step 5:
12 goes into 28 2 times with a remainder of 4.
The next digit of our result is 2. 
Result so far: 1792.0
If we subtract 24 from 28, we get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 12

Step 6:
43 divided by 12 is 3 with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 17923.0
If we take 36 away from 43, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
When dividing 70 by 12, we get 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 17923.5
Deduct 60 from 70 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
When dividing 100 by 12, we get 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 17923.58
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.

On to step 9:
40 divided by 12 is 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 17923.583
Subtract 36 from 40 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.

Advancing to step 10:
When dividing 40 by 12, we get 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 17923.5833
Deduct 36 from 40 and we're left 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 final result is 17923.5833 with a remainder of 4e-05.