We look at the division of 86415 by 28 
We're looking to find how many times 28 goes into 86415.

Advancing to step 1:
8 divided by 28 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in 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 / 28

Advancing to step 2:
28 can be fit into 86 3 times, resulting in a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 84 away from 86, we end up with 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 28

On to step 3:
28 can be fit into 24 0 times, resulting in a remainder of 24.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
If we take 0 away from 24, we end up with 24.
Append the next digit (1) from the dividend to 24 and continue with: 241 / 28

Step 4:
If we divide 241 by 28, we get 8 and a remainder of 17.
Put 8 as the next digit of the answer. 
Result so far: 308.0
Deduct 224 from 241 and we're left with 17.
Include the next digit (5) from the dividend after 17, then repeat: 175 / 28

Moving on to step 5:
175 divided by 28 is 6 with a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 3086.0
If we subtract 168 from 175, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 6:
70 divided by 28 is 2 with a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 3086.2
If we take 56 away from 70, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 7:
140 divided by 28 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 3086.25
Deduct 140 from 140 and we're left 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 8:
When dividing 0 by 28, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 3086.25
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.

Moving on to step 9:
28 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 3086.25
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 3086.25 with a remaining 0.0.