517909 ÷ 26 
Our goal is to divide 517909 by 26.

Step 1:
26 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 26

Going ahead to step 2:
The number 26 fits into 51 1 times, leaving a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 26 from 51 to get 25.
Fetch the next digit (7) from the dividend, attach it to 25 and continue: 257 / 26

Going ahead to step 3:
When dividing 257 by 26, we get 9 with a remainder of 23.
Write down 9 as next digit of the result. 
Result so far: 19.0
Deduct 234 from 257 and we're left with 23.
Grab the next digit (9) from the dividend, add it to 23, then carry on: 239 / 26

Advancing to step 4:
26 can be fit into 239 9 times, resulting in a remainder of 5.
The next digit of our result is 9. 
Result so far: 199.0
Subtract 234 from 239 to get 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 26

Moving on to step 5:
The number 26 fits into 50 1 times, leaving a remainder of 24.
The number 1 becomes the next digit in our result. 
Result so far: 1991.0
The remainder is 24 after subtracting 26 from 50.
Fetch the next digit (9) from the dividend, attach it to 24 and continue: 249 / 26

On to step 6:
26 goes into 249 9 times with a remainder of 15.
Put 9 as the next digit of the answer. 
Result so far: 19919.0
If we subtract 234 from 249, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 7:
150 divided by 26 is 5 with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 19919.5
Deduct 130 from 150 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
26 can be fit into 200 7 times, resulting in a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 19919.57
Subtracting 182 from 200 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 9:
If we divide 180 by 26, we get 6 and a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 19919.576
Subtract 156 from 180 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
240 divided by 26 is 9 with a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 19919.5769
Deduct 234 from 240 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 11:
If we divide 60 by 26, we get 2 and a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 19919.57692
If we subtract 52 from 60, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 12:
80 divided by 26 is 3 with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 19919.576923
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 13:
If we divide 20 by 26, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 19919.576923
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 14:
200 divided by 26 is 7 with a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 19919.57692307
Subtracting 182 from 200 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Our division results in 19919.57692307 with a remaining 1.8e-08.