We look at the division of 866924 by 12 
We want to figure out the number of times 866924 can be divided by 12.

On to step 1:
12 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 12

Let's proceed to step 2:
When dividing 86 by 12, we get 7 with a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 84 from 86 to get 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 12

Let's proceed to step 3:
The number 12 fits into 26 2 times, leaving a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 72.0
If we subtract 24 from 26, we get 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 12

Advancing to step 4:
When dividing 29 by 12, we get 2 with a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 722.0
If we take 24 away from 29, we end up with 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 12

Step 5:
12 can be fit into 52 4 times, resulting in a remainder of 4.
The next digit of our result is 4. 
Result so far: 7224.0
If we subtract 48 from 52, we get 4.
Fetch the next digit (4) from the dividend, attach it to 4 and continue: 44 / 12

Step 6:
44 divided by 12 is 3 with a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 72243.0
Subtracting 36 from 44 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 7:
If we divide 80 by 12, we get 6 and a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 72243.6
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
12 goes into 80 6 times with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 72243.66
Subtract 72 from 80 to 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.

The final result is 72243.66 with a remainder of 0.008.