Let's divide 12488 by 86
Our goal is to divide 12488 by 86.

Advancing to step 1:
The number 86 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 86

Advancing to step 2:
The number 86 fits into 12 0 times, leaving a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Take the next digit (4) from the dividend and append it to 12, then repeat: 124 / 86

Advancing to step 3:
When dividing 124 by 86, we get 1 with a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 86 from 124 leaves us with 38.
Include the next digit (8) from the dividend after 38, then repeat: 388 / 86

Advancing to step 4:
86 goes into 388 4 times with a remainder of 44.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtracting 344 from 388 leaves us with 44.
Include the next digit (8) from the dividend after 44, then repeat: 448 / 86

Going ahead to step 5:
If we divide 448 by 86, we get 5 and a remainder of 18.
Put 5 as the next digit of the answer. 
Result so far: 145.0
If we take 430 away from 448, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 6:
The number 86 fits into 180 2 times, leaving a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 145.2
The remainder is 8 after subtracting 172 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 7:
The number 86 fits into 80 0 times, leaving a remainder of 80.
The next digit of our result is 0. 
Result so far: 145.2
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 8:
The number 86 fits into 800 9 times, leaving a remainder of 26.
The next digit of our result is 9. 
Result so far: 145.209
Subtract 774 from 800 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 9:
86 can be fit into 260 3 times, resulting in a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 145.2093
Subtract 258 from 260 to get 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 10:
If we divide 20 by 86, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 145.2093
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 11:
86 can be fit into 200 2 times, resulting in a remainder of 28.
Write down 2 as next digit of the result. 
Result so far: 145.209302
If we take 172 away from 200, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 12:
86 goes into 280 3 times with a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 145.2093023
If we take 258 away from 280, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 13:
When dividing 220 by 86, we get 2 with a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 145.20930232
Deduct 172 from 220 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.

After the division, we end up with 145.20930232 and a remainder of 4.8e-08.