We look at the division of 8495455 by 509 
We want to divide 8495455 by 509.

Advancing to step 1:
When dividing 8 by 509, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 509

Advancing to step 2:
509 can be fit into 84 0 times, resulting in a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 84 leaves us with 84.
Append the next digit (9) from the dividend to 84 and continue with: 849 / 509

Moving on to step 3:
849 divided by 509 is 1 with a remainder of 340.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 509 from 849 to get 340.
Include the next digit (5) from the dividend after 340, then repeat: 3405 / 509

Let's proceed to step 4:
If we divide 3405 by 509, we get 6 and a remainder of 351.
The next digit of our result is 6. 
Result so far: 16.0
If we subtract 3054 from 3405, we get 351.
Fetch the next digit (4) from the dividend, attach it to 351 and continue: 3514 / 509

Going ahead to step 5:
3514 divided by 509 is 6 with a remainder of 460.
Put 6 as the next digit of the answer. 
Result so far: 166.0
If we subtract 3054 from 3514, we get 460.
Append the next digit (5) from the dividend to 460 and continue with: 4605 / 509

On to step 6:
If we divide 4605 by 509, we get 9 and a remainder of 24.
Record the quotient 9 as the next digit in the result. 
Result so far: 1669.0
Subtracting 4581 from 4605 leaves us with 24.
Fetch the next digit (5) from the dividend, attach it to 24 and continue: 245 / 509

Let's proceed to step 7:
509 can be fit into 245 0 times, resulting in a remainder of 245.
Use 0 as the next digit of our solution. 
Result so far: 16690.0
The remainder is 245 after subtracting 0 from 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Step 8:
If we divide 2450 by 509, we get 4 and a remainder of 414.
The next digit of our result is 4. 
Result so far: 16690.4
The remainder is 414 after subtracting 2036 from 2450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Let's proceed to step 9:
509 goes into 4140 8 times with a remainder of 68.
Write down 8 as next digit of the result. 
Result so far: 16690.48
Deduct 4072 from 4140 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 10:
When dividing 680 by 509, we get 1 with a remainder of 171.
Use 1 as the next digit of our solution. 
Result so far: 16690.481
If we take 509 away from 680, we end up with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Advancing to step 11:
509 goes into 1710 3 times with a remainder of 183.
The number 3 becomes the next digit in our result. 
Result so far: 16690.4813
If we subtract 1527 from 1710, we get 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Advancing to step 12:
1830 divided by 509 is 3 with a remainder of 303.
Use 3 as the next digit of our solution. 
Result so far: 16690.48133
If we subtract 1527 from 1830, we get 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

After the division, we end up with 16690.48133 and a remainder of 0.000303.