279909 divided by 86 
Our goal is to divide 279909 by 86.

Moving on to step 1:
When dividing 2 by 86, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 86

Going ahead to step 2:
27 divided by 86 is 0 with a remainder of 27.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 27 leaves us with 27.
Bring next digit (9) of the dividend behind the 27 and repeat the process: 279 / 86

Moving on to step 3:
279 divided by 86 is 3 with a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 258 from 279, we get 21.
Grab the next digit (9) from the dividend, add it to 21, then carry on: 219 / 86

On to step 4:
219 divided by 86 is 2 with a remainder of 47.
Write down 2 as next digit of the result. 
Result so far: 32.0
The remainder is 47 after subtracting 172 from 219.
Grab the next digit (0) from the dividend, add it to 47, then carry on: 470 / 86

On to step 5:
86 can be fit into 470 5 times, resulting in a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 325.0
The remainder is 40 after subtracting 430 from 470.
Append the next digit (9) from the dividend to 40 and continue with: 409 / 86

Going ahead to step 6:
86 goes into 409 4 times with a remainder of 65.
Use 4 as the next digit of our solution. 
Result so far: 3254.0
If we subtract 344 from 409, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 7:
The number 86 fits into 650 7 times, leaving a remainder of 48.
The next digit of our result is 7. 
Result so far: 3254.7
If we take 602 away from 650, we end up 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.

Let's proceed to step 8:
480 divided by 86 is 5 with a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 3254.75
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.

Going ahead to step 9:
If we divide 500 by 86, we get 5 and a remainder of 70.
Record the quotient 5 as the next digit in the result. 
Result so far: 3254.755
The remainder is 70 after subtracting 430 from 500.
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 3254.755 with a remaining 0.007.