We look at the division of 7303535 by 309 
Let's see how many times 309 fits into 7303535.

Advancing to step 1:
The number 309 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 309

Moving on to step 2:
The number 309 fits into 73 0 times, leaving a remainder of 73.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 73, we get 73.
Bring next digit (0) of the dividend behind the 73 and repeat the process: 730 / 309

Step 3:
The number 309 fits into 730 2 times, leaving a remainder of 112.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 618 from 730 to get 112.
Fetch the next digit (3) from the dividend, attach it to 112 and continue: 1123 / 309

Step 4:
The number 309 fits into 1123 3 times, leaving a remainder of 196.
Use 3 as the next digit of our solution. 
Result so far: 23.0
If we subtract 927 from 1123, we get 196.
Take the next digit (5) from the dividend and append it to 196, then repeat: 1965 / 309

On to step 5:
309 goes into 1965 6 times with a remainder of 111.
The next digit of our result is 6. 
Result so far: 236.0
If we subtract 1854 from 1965, we get 111.
Include the next digit (3) from the dividend after 111, then repeat: 1113 / 309

Advancing to step 6:
The number 309 fits into 1113 3 times, leaving a remainder of 186.
The number 3 becomes the next digit in our result. 
Result so far: 2363.0
Deduct 927 from 1113 and we're left with 186.
Append the next digit (5) from the dividend to 186 and continue with: 1865 / 309

Step 7:
When dividing 1865 by 309, we get 6 with a remainder of 11.
Use 6 as the next digit of our solution. 
Result so far: 23636.0
Subtracting 1854 from 1865 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 8:
309 goes into 110 0 times with a remainder of 110.
The number 0 becomes the next digit in our result. 
Result so far: 23636.0
The remainder is 110 after subtracting 0 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 9:
1100 divided by 309 is 3 with a remainder of 173.
Put 3 as the next digit of the answer. 
Result so far: 23636.03
If we subtract 927 from 1100, we get 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

On to step 10:
309 can be fit into 1730 5 times, resulting in a remainder of 185.
The number 5 becomes the next digit in our result. 
Result so far: 23636.035
Subtracting 1545 from 1730 leaves us with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Advancing to step 11:
If we divide 1850 by 309, we get 5 and a remainder of 305.
The next digit of our result is 5. 
Result so far: 23636.0355
The remainder is 305 after subtracting 1545 from 1850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

The final result is 23636.0355 with a remainder of 0.00305.