We look at the division of 2434 by 86 
We want to divide 2434 by 86.

On to step 1:
When dividing 2 by 86, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 86

Let's proceed to step 2:
If we divide 24 by 86, we get 0 and a remainder of 24.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 24 leaves us with 24.
Include the next digit (3) from the dividend after 24, then repeat: 243 / 86

Moving on to step 3:
243 divided by 86 is 2 with a remainder of 71.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 172 away from 243, we end up with 71.
Grab the next digit (4) from the dividend, add it to 71, then carry on: 714 / 86

Going ahead to step 4:
86 goes into 714 8 times with a remainder of 26.
Use 8 as the next digit of our solution. 
Result so far: 28.0
The remainder is 26 after subtracting 688 from 714.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 5:
86 goes into 260 3 times with a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 28.3
If we take 258 away from 260, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 6:
The number 86 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 28.3
Subtract 0 from 20 to 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.

Step 7:
The number 86 fits into 200 2 times, leaving a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 28.302
If we subtract 172 from 200, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 8:
86 goes into 280 3 times with a remainder of 22.
Record the quotient 3 as the next digit in the result. 
Result so far: 28.3023
Deduct 258 from 280 and we're left 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 9:
86 goes into 220 2 times with a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 28.30232
If we subtract 172 from 220, we 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.

Advancing to step 10:
86 can be fit into 480 5 times, resulting in a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 28.302325
If we subtract 430 from 480, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 11:
86 goes into 500 5 times with a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 28.3023255
Subtracting 430 from 500 leaves us 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 28.3023255 with a remaining 7e-07.