We're dividing 86457251 by 913 
We want to figure out the number of times 86457251 can be divided by 913.

On to step 1:
913 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 913

On to step 2:
When dividing 86 by 913, we get 0 with a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Include the next digit (4) from the dividend after 86, then repeat: 864 / 913

Moving on to step 3:
The number 913 fits into 864 0 times, leaving a remainder of 864.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 864 to get 864.
Grab the next digit (5) from the dividend, add it to 864, then carry on: 8645 / 913

Moving on to step 4:
The number 913 fits into 8645 9 times, leaving a remainder of 428.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Deduct 8217 from 8645 and we're left with 428.
Append the next digit (7) from the dividend to 428 and continue with: 4287 / 913

Step 5:
913 can be fit into 4287 4 times, resulting in a remainder of 635.
Record the quotient 4 as the next digit in the result. 
Result so far: 94.0
Subtracting 3652 from 4287 leaves us with 635.
Bring next digit (2) of the dividend behind the 635 and repeat the process: 6352 / 913

Step 6:
913 can be fit into 6352 6 times, resulting in a remainder of 874.
Use 6 as the next digit of our solution. 
Result so far: 946.0
If we subtract 5478 from 6352, we get 874.
Include the next digit (5) from the dividend after 874, then repeat: 8745 / 913

Advancing to step 7:
When dividing 8745 by 913, we get 9 with a remainder of 528.
The next digit of our result is 9. 
Result so far: 9469.0
Deduct 8217 from 8745 and we're left with 528.
Bring next digit (1) of the dividend behind the 528 and repeat the process: 5281 / 913

Let's proceed to step 8:
If we divide 5281 by 913, we get 5 and a remainder of 716.
Use 5 as the next digit of our solution. 
Result so far: 94695.0
Subtracting 4565 from 5281 leaves us with 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Step 9:
The number 913 fits into 7160 7 times, leaving a remainder of 769.
Put 7 as the next digit of the answer. 
Result so far: 94695.7
Subtract 6391 from 7160 to get 769.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7690, and continue the process.

Step 10:
913 goes into 7690 8 times with a remainder of 386.
Write down 8 as next digit of the result. 
Result so far: 94695.78
If we subtract 7304 from 7690, we get 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Let's proceed to step 11:
913 can be fit into 3860 4 times, resulting in a remainder of 208.
Write down 4 as next digit of the result. 
Result so far: 94695.784
Subtract 3652 from 3860 to get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Step 12:
913 can be fit into 2080 2 times, resulting in a remainder of 254.
Record the quotient 2 as the next digit in the result. 
Result so far: 94695.7842
If we take 1826 away from 2080, we end up with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

On to step 13:
913 can be fit into 2540 2 times, resulting in a remainder of 714.
Record the quotient 2 as the next digit in the result. 
Result so far: 94695.78422
Deduct 1826 from 2540 and we're left with 714.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7140, and continue the process.

After the division, we end up with 94695.78422 and a remainder of 0.000714.