Let's divide 509816 by 1
We're looking to find how many times 1 goes into 509816.

Moving on to step 1:
The number 1 fits into 5 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 0 after subtracting 5 from 5.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 1

Advancing to step 2:
1 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 50.0
Subtract 0 from 0 to get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 1

Let's proceed to step 3:
If we divide 9 by 1, we get 9 and a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 509.0
Subtracting 9 from 9 leaves us with 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 1

Moving on to step 4:
8 divided by 1 is 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 5098.0
Subtract 8 from 8 to get 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 1

Moving on to step 5:
1 divided by 1 is 1 with a remainder of 0.
The next digit of our result is 1. 
Result so far: 50981.0
The remainder is 0 after subtracting 1 from 1.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 1

Moving on to step 6:
When dividing 6 by 1, we get 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 509816.0
If we subtract 6 from 6, 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.

Advancing to step 7:
1 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 509816.0
Deduct 0 from 0 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.

Step 8:
0 divided by 1 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 509816.0
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.

The final result is 509816.0 with a remainder of 0.0.