248648 ÷ 86 
We want to figure out the number of times 248648 can be divided by 86.

On to step 1:
86 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 86

Going ahead to step 2:
When dividing 24 by 86, we get 0 with a remainder of 24.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 24, we end up with 24.
Take the next digit (8) from the dividend and append it to 24, then repeat: 248 / 86

Step 3:
248 divided by 86 is 2 with a remainder of 76.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 172 from 248 leaves us with 76.
Include the next digit (6) from the dividend after 76, then repeat: 766 / 86

Advancing to step 4:
When dividing 766 by 86, we get 8 with a remainder of 78.
The number 8 becomes the next digit in our result. 
Result so far: 28.0
If we subtract 688 from 766, we get 78.
Grab the next digit (4) from the dividend, add it to 78, then carry on: 784 / 86

Going ahead to step 5:
When dividing 784 by 86, we get 9 with a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 289.0
Subtract 774 from 784 to get 10.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 86

Let's proceed to step 6:
The number 86 fits into 108 1 times, leaving a remainder of 22.
The next digit of our result is 1. 
Result so far: 2891.0
If we take 86 away from 108, 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.

Advancing to step 7:
When dividing 220 by 86, we get 2 with a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 2891.2
Subtract 172 from 220 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 8:
86 goes into 480 5 times with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 2891.25
Subtracting 430 from 480 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
86 can be fit into 500 5 times, resulting in a remainder of 70.
Record the quotient 5 as the next digit in the result. 
Result so far: 2891.255
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 2891.255 with a remaining 0.007.