Let's divide 518791 by 26
We want to figure out the number of times 518791 can be divided by 26.

Advancing to step 1:
5 divided by 26 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 26

Step 2:
If we divide 51 by 26, we get 1 and a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 26 from 51 and we're left with 25.
Grab the next digit (8) from the dividend, add it to 25, then carry on: 258 / 26

Moving on to step 3:
26 goes into 258 9 times with a remainder of 24.
The next digit of our result is 9. 
Result so far: 19.0
The remainder is 24 after subtracting 234 from 258.
Take the next digit (7) from the dividend and append it to 24, then repeat: 247 / 26

Step 4:
26 goes into 247 9 times with a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 199.0
The remainder is 13 after subtracting 234 from 247.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 26

On to step 5:
26 can be fit into 139 5 times, resulting in a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 1995.0
Subtracting 130 from 139 leaves us with 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 26

On to step 6:
The number 26 fits into 91 3 times, leaving a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 19953.0
Deduct 78 from 91 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
130 divided by 26 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 19953.5
Deduct 130 from 130 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
26 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 19953.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
The number 26 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 19953.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 19953.5 with a remainder of 0.0.