We're dividing 303440 by 75 
Let's see how many times 75 fits into 303440.

Going ahead to step 1:
If we divide 3 by 75, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 75

Let's proceed to step 2:
If we divide 30 by 75, we get 0 and a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Take the next digit (3) from the dividend and append it to 30, then repeat: 303 / 75

Step 3:
303 divided by 75 is 4 with a remainder of 3.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 300 from 303 and we're left with 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 75

Going ahead to step 4:
If we divide 34 by 75, we get 0 and a remainder of 34.
The next digit of our result is 0. 
Result so far: 40.0
If we take 0 away from 34, we end up with 34.
Append the next digit (4) from the dividend to 34 and continue with: 344 / 75

On to step 5:
When dividing 344 by 75, we get 4 with a remainder of 44.
Write down 4 as next digit of the result. 
Result so far: 404.0
If we subtract 300 from 344, we get 44.
Include the next digit (0) from the dividend after 44, then repeat: 440 / 75

Going ahead to step 6:
The number 75 fits into 440 5 times, leaving a remainder of 65.
The next digit of our result is 5. 
Result so far: 4045.0
The remainder is 65 after subtracting 375 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 7:
When dividing 650 by 75, we get 8 with a remainder of 50.
The number 8 becomes the next digit in our result. 
Result so far: 4045.8
The remainder is 50 after subtracting 600 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 8:
75 goes into 500 6 times with a remainder of 50.
The number 6 becomes the next digit in our result. 
Result so far: 4045.86
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 9:
The number 75 fits into 500 6 times, leaving a remainder of 50.
Use 6 as the next digit of our solution. 
Result so far: 4045.866
Subtracting 450 from 500 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 4045.866 with a remainder of 0.005.