86310 ÷ 28 
Our goal is to divide 86310 by 28.

Advancing to step 1:
28 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 28

Going ahead to step 2:
86 divided by 28 is 3 with a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 84 from 86 leaves us with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 28

Step 3:
When dividing 23 by 28, we get 0 with a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
The remainder is 23 after subtracting 0 from 23.
Grab the next digit (1) from the dividend, add it to 23, then carry on: 231 / 28

Let's proceed to step 4:
The number 28 fits into 231 8 times, leaving a remainder of 7.
Record the quotient 8 as the next digit in the result. 
Result so far: 308.0
Subtract 224 from 231 to get 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 28

Let's proceed to step 5:
If we divide 70 by 28, we get 2 and a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 3082.0
The remainder is 14 after subtracting 56 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 6:
28 can be fit into 140 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 3082.5
If we subtract 140 from 140, 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.

Let's proceed to step 7:
If we divide 0 by 28, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 3082.5
The remainder is 0 after subtracting 0 from 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:
The number 28 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3082.5
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.

The final outcome is 3082.5, with a leftover of 0.0.