We divide 129600 by 75
Let's see how many times 75 fits into 129600.

Going ahead to step 1:
75 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 75

Moving on to step 2:
When dividing 12 by 75, we get 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Take the next digit (9) from the dividend and append it to 12, then repeat: 129 / 75

On to step 3:
The number 75 fits into 129 1 times, leaving a remainder of 54.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 75 from 129 and we're left with 54.
Append the next digit (6) from the dividend to 54 and continue with: 546 / 75

On to step 4:
546 divided by 75 is 7 with a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we subtract 525 from 546, we get 21.
Append the next digit (0) from the dividend to 21 and continue with: 210 / 75

Moving on to step 5:
When dividing 210 by 75, we get 2 with a remainder of 60.
The next digit of our result is 2. 
Result so far: 172.0
The remainder is 60 after subtracting 150 from 210.
Include the next digit (0) from the dividend after 60, then repeat: 600 / 75

Going ahead to step 6:
75 can be fit into 600 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 1728.0
The remainder is 0 after subtracting 600 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
The number 75 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1728.0
If we subtract 0 from 0, we 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.

Moving on to step 8:
75 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1728.0
Subtracting 0 from 0 leaves us 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 quotient of the division is 1728.0, and the remainder is 0.0.