97408519 ÷ 509 
We want to divide 97408519 by 509.

On to step 1:
The number 509 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (7) from the dividend after 9, then repeat: 97 / 509

Going ahead to step 2:
When dividing 97 by 509, we get 0 with a remainder of 97.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 97 after subtracting 0 from 97.
Append the next digit (4) from the dividend to 97 and continue with: 974 / 509

Moving on to step 3:
If we divide 974 by 509, we get 1 and a remainder of 465.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 509 from 974, we get 465.
Include the next digit (0) from the dividend after 465, then repeat: 4650 / 509

Advancing to step 4:
The number 509 fits into 4650 9 times, leaving a remainder of 69.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Deduct 4581 from 4650 and we're left with 69.
Append the next digit (8) from the dividend to 69 and continue with: 698 / 509

Going ahead to step 5:
When dividing 698 by 509, we get 1 with a remainder of 189.
The next digit of our result is 1. 
Result so far: 191.0
Subtracting 509 from 698 leaves us with 189.
Take the next digit (5) from the dividend and append it to 189, then repeat: 1895 / 509

On to step 6:
509 goes into 1895 3 times with a remainder of 368.
Put 3 as the next digit of the answer. 
Result so far: 1913.0
If we subtract 1527 from 1895, we get 368.
Append the next digit (1) from the dividend to 368 and continue with: 3681 / 509

Moving on to step 7:
509 goes into 3681 7 times with a remainder of 118.
Record the quotient 7 as the next digit in the result. 
Result so far: 19137.0
Subtracting 3563 from 3681 leaves us with 118.
Grab the next digit (9) from the dividend, add it to 118, then carry on: 1189 / 509

Advancing to step 8:
509 goes into 1189 2 times with a remainder of 171.
Use 2 as the next digit of our solution. 
Result so far: 191372.0
If we take 1018 away from 1189, 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.

Step 9:
The number 509 fits into 1710 3 times, leaving a remainder of 183.
Use 3 as the next digit of our solution. 
Result so far: 191372.3
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.

Moving on to step 10:
509 goes into 1830 3 times with a remainder of 303.
Write down 3 as next digit of the result. 
Result so far: 191372.33
Deduct 1527 from 1830 and we're left with 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 191372.33 and a remainder of 0.303.