300268 ÷ 75 
We want to figure out the number of times 300268 can be divided by 75.

Going ahead to step 1:
The number 75 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 75

On to step 2:
30 divided by 75 is 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Bring next digit (0) of the dividend behind the 30 and repeat the process: 300 / 75

On to step 3:
75 can be fit into 300 4 times, resulting in a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 300 away from 300, we end up with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 75

On to step 4:
75 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 40.0
If we take 0 away from 2, we end up with 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 75

Step 5:
75 can be fit into 26 0 times, resulting in a remainder of 26.
Put 0 as the next digit of the answer. 
Result so far: 400.0
The remainder is 26 after subtracting 0 from 26.
Include the next digit (8) from the dividend after 26, then repeat: 268 / 75

On to step 6:
75 goes into 268 3 times with a remainder of 43.
The next digit of our result is 3. 
Result so far: 4003.0
If we take 225 away from 268, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 7:
430 divided by 75 is 5 with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 4003.5
If we take 375 away from 430, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 8:
The number 75 fits into 550 7 times, leaving a remainder of 25.
Use 7 as the next digit of our solution. 
Result so far: 4003.57
Deduct 525 from 550 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 9:
75 goes into 250 3 times with a remainder of 25.
Record the quotient 3 as the next digit in the result. 
Result so far: 4003.573
If we take 225 away from 250, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 10:
The number 75 fits into 250 3 times, leaving a remainder of 25.
The next digit of our result is 3. 
Result so far: 4003.5733
Deduct 225 from 250 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 4003.5733, with a leftover of 0.00025.