We're dividing 30453 by 75 
We want to divide 30453 by 75.

Step 1:
75 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 75

Going ahead to step 2:
The number 75 fits into 30 0 times, leaving a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Bring next digit (4) of the dividend behind the 30 and repeat the process: 304 / 75

Advancing to step 3:
75 goes into 304 4 times with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 300 from 304 to get 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 75

Advancing to step 4:
When dividing 45 by 75, we get 0 with a remainder of 45.
The next digit of our result is 0. 
Result so far: 40.0
If we take 0 away from 45, we end up with 45.
Bring next digit (3) of the dividend behind the 45 and repeat the process: 453 / 75

Advancing to step 5:
75 goes into 453 6 times with a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 406.0
The remainder is 3 after subtracting 450 from 453.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 6:
When dividing 30 by 75, we get 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 406.0
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 7:
75 goes into 300 4 times with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 406.04
Subtract 300 from 300 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 75, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 406.04
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
If we divide 0 by 75, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 406.04
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 406.04, with a leftover of 0.0.