15287 divided by 86 
We're looking to find how many times 86 goes into 15287.

Step 1:
When dividing 1 by 86, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 86

Going ahead to step 2:
The number 86 fits into 15 0 times, leaving a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Fetch the next digit (2) from the dividend, attach it to 15 and continue: 152 / 86

Let's proceed to step 3:
86 can be fit into 152 1 times, resulting in a remainder of 66.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 86 from 152 leaves us with 66.
Take the next digit (8) from the dividend and append it to 66, then repeat: 668 / 86

Moving on to step 4:
If we divide 668 by 86, we get 7 and a remainder of 66.
Write down 7 as next digit of the result. 
Result so far: 17.0
The remainder is 66 after subtracting 602 from 668.
Fetch the next digit (7) from the dividend, attach it to 66 and continue: 667 / 86

Moving on to step 5:
The number 86 fits into 667 7 times, leaving a remainder of 65.
The number 7 becomes the next digit in our result. 
Result so far: 177.0
The remainder is 65 after subtracting 602 from 667.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 6:
86 goes into 650 7 times with a remainder of 48.
Use 7 as the next digit of our solution. 
Result so far: 177.7
Deduct 602 from 650 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 7:
86 goes into 480 5 times with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 177.75
The remainder is 50 after subtracting 430 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
If we divide 500 by 86, we get 5 and a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 177.755
Deduct 430 from 500 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Our division results in 177.755 with a remaining 0.007.