We divide 213205 by 12
We want to figure out the number of times 213205 can be divided by 12.

On to step 1:
12 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 12

On to step 2:
12 goes into 21 1 times with a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 9 after subtracting 12 from 21.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 12

On to step 3:
If we divide 93 by 12, we get 7 and a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
If we subtract 84 from 93, we get 9.
Append the next digit (2) from the dividend to 9 and continue with: 92 / 12

On to step 4:
The number 12 fits into 92 7 times, leaving a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 177.0
If we take 84 away from 92, we end up with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 12

Advancing to step 5:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 1776.0
The remainder is 8 after subtracting 72 from 80.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 12

Step 6:
12 can be fit into 85 7 times, resulting in a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 17767.0
The remainder is 1 after subtracting 84 from 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
If we divide 10 by 12, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 17767.0
Subtracting 0 from 10 leaves us 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:
The number 12 fits into 100 8 times, leaving a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 17767.08
Deduct 96 from 100 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.

On to step 9:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 17767.083
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.

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: 17767.0833
If we subtract 36 from 40, we 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.

The quotient of the division is 17767.0833, and the remainder is 4e-05.