Let's divide 869015 by 12
Our goal is to divide 869015 by 12.

Advancing to step 1:
12 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in 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

Moving on to step 2:
When dividing 86 by 12, we get 7 with a remainder of 2.
The next digit of our result is 7. 
Result so far: 7.0
If we take 84 away from 86, we end up with 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 12

On to step 3:
If we divide 29 by 12, we get 2 and a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
If we take 24 away from 29, we end up with 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 12

Advancing to step 4:
50 divided by 12 is 4 with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 724.0
Subtract 48 from 50 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 12

Going ahead to step 5:
21 divided by 12 is 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 7241.0
If we subtract 12 from 21, we get 9.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 12

Let's proceed to step 6:
The number 12 fits into 95 7 times, leaving a remainder of 11.
Record the quotient 7 as the next digit in the result. 
Result so far: 72417.0
Subtract 84 from 95 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
When dividing 110 by 12, we get 9 with a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 72417.9
Subtracting 108 from 110 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
12 can be fit into 20 1 times, resulting in a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 72417.91
The remainder is 8 after subtracting 12 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
When dividing 80 by 12, we get 6 with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 72417.916
Deduct 72 from 80 and we're left 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.

Moving on to step 10:
12 can be fit into 80 6 times, resulting in a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 72417.9166
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.

After the division, we end up with 72417.9166 and a remainder of 8e-05.