We're dividing 510221 by 26 
Our goal is to divide 510221 by 26.

On to step 1:
The number 26 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 26

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
The remainder is 25 after subtracting 26 from 51.
Fetch the next digit (0) from the dividend, attach it to 25 and continue: 250 / 26

Advancing to step 3:
26 can be fit into 250 9 times, resulting in a remainder of 16.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtract 234 from 250 to get 16.
Take the next digit (2) from the dividend and append it to 16, then repeat: 162 / 26

Let's proceed to step 4:
162 divided by 26 is 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 196.0
Deduct 156 from 162 and we're left with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 26

Going ahead to step 5:
If we divide 62 by 26, we get 2 and a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 1962.0
If we take 52 away from 62, we end up with 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 26

Going ahead to step 6:
26 goes into 101 3 times with a remainder of 23.
The next digit of our result is 3. 
Result so far: 19623.0
If we take 78 away from 101, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 7:
If we divide 230 by 26, we get 8 and a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 19623.8
Subtracting 208 from 230 leaves us 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 8:
When dividing 220 by 26, we get 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 19623.88
If we take 208 away from 220, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 19623.88, with a leftover of 0.012.