86215 divided by 9 
We want to figure out the number of times 86215 can be divided by 9.

Let's proceed to step 1:
When dividing 8 by 9, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 9

Step 2:
The number 9 fits into 86 9 times, leaving a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 81 from 86, we get 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 9

Step 3:
9 goes into 52 5 times with a remainder of 7.
Write down 5 as next digit of the result. 
Result so far: 95.0
Subtract 45 from 52 to get 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 9

On to step 4:
If we divide 71 by 9, we get 7 and a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 957.0
Subtract 63 from 71 to get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 9

Going ahead to step 5:
9 can be fit into 85 9 times, resulting in a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 9579.0
Subtracting 81 from 85 leaves us 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.

Step 6:
The number 9 fits into 40 4 times, leaving a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 9579.4
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.

On to step 7:
9 can be fit into 40 4 times, resulting in a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 9579.44
If we take 36 away from 40, we end up 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 outcome is 9579.44, with a leftover of 0.004.