We're dividing 258512 by 91 
We're looking to find how many times 91 goes into 258512.

Going ahead to step 1:
If we divide 2 by 91, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 91

Moving on to step 2:
If we divide 25 by 91, we get 0 and a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Fetch the next digit (8) from the dividend, attach it to 25 and continue: 258 / 91

Let's proceed to step 3:
91 goes into 258 2 times with a remainder of 76.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 182 from 258, we get 76.
Append the next digit (5) from the dividend to 76 and continue with: 765 / 91

On to step 4:
The number 91 fits into 765 8 times, leaving a remainder of 37.
The next digit of our result is 8. 
Result so far: 28.0
Subtract 728 from 765 to get 37.
Grab the next digit (1) from the dividend, add it to 37, then carry on: 371 / 91

Step 5:
The number 91 fits into 371 4 times, leaving a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 284.0
If we subtract 364 from 371, we get 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 91

Going ahead to step 6:
When dividing 72 by 91, we get 0 with a remainder of 72.
Write down 0 as next digit of the result. 
Result so far: 2840.0
Deduct 0 from 72 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 7:
The number 91 fits into 720 7 times, leaving a remainder of 83.
Use 7 as the next digit of our solution. 
Result so far: 2840.7
Subtracting 637 from 720 leaves us with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Moving on to step 8:
When dividing 830 by 91, we get 9 with a remainder of 11.
The next digit of our result is 9. 
Result so far: 2840.79
If we take 819 away from 830, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 9:
91 can be fit into 110 1 times, resulting in a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 2840.791
If we subtract 91 from 110, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 10:
If we divide 190 by 91, we get 2 and a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 2840.7912
Subtracting 182 from 190 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
80 divided by 91 is 0 with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 2840.7912
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.

Step 12:
91 goes into 800 8 times with a remainder of 72.
Write down 8 as next digit of the result. 
Result so far: 2840.791208
The remainder is 72 after subtracting 728 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 13:
91 goes into 720 7 times with a remainder of 83.
The number 7 becomes the next digit in our result. 
Result so far: 2840.7912087
The remainder is 83 after subtracting 637 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 14:
830 divided by 91 is 9 with a remainder of 11.
The next digit of our result is 9. 
Result so far: 2840.79120879
If we take 819 away from 830, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final result is 2840.79120879 with a remainder of 1.1e-08.