Let's divide 869385 by 12
We want to figure out the number of times 869385 can be divided by 12.

Going ahead to step 1:
The number 12 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 12

Going ahead to step 2:
The number 12 fits into 86 7 times, leaving a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 7.0
The remainder is 2 after subtracting 84 from 86.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 12

On to step 3:
12 goes into 29 2 times with a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 72.0
If we subtract 24 from 29, we get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 12

Going ahead to step 4:
12 can be fit into 53 4 times, resulting in a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 724.0
Subtracting 48 from 53 leaves us with 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 12

Moving on to step 5:
The number 12 fits into 58 4 times, leaving a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 7244.0
Deduct 48 from 58 and we're left with 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 12

Going ahead to step 6:
When dividing 105 by 12, we get 8 with a remainder of 9.
Write down 8 as next digit of the result. 
Result so far: 72448.0
Subtracting 96 from 105 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
12 goes into 90 7 times with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 72448.7
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
The number 12 fits into 60 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 72448.75
If we take 60 away from 60, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
12 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 72448.75
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
If we divide 0 by 12, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 72448.75
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 72448.75 with a remainder of 0.0.