We look at the division of 75395865 by 129 
We want to figure out the number of times 75395865 can be divided by 129.

Going ahead to step 1:
7 divided by 129 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 129

On to step 2:
The number 129 fits into 75 0 times, leaving a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 75, we end up with 75.
Bring next digit (3) of the dividend behind the 75 and repeat the process: 753 / 129

Step 3:
If we divide 753 by 129, we get 5 and a remainder of 108.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we take 645 away from 753, we end up with 108.
Bring next digit (9) of the dividend behind the 108 and repeat the process: 1089 / 129

Step 4:
If we divide 1089 by 129, we get 8 and a remainder of 57.
The next digit of our result is 8. 
Result so far: 58.0
Subtract 1032 from 1089 to get 57.
Grab the next digit (5) from the dividend, add it to 57, then carry on: 575 / 129

Moving on to step 5:
575 divided by 129 is 4 with a remainder of 59.
The number 4 becomes the next digit in our result. 
Result so far: 584.0
If we subtract 516 from 575, we get 59.
Bring next digit (8) of the dividend behind the 59 and repeat the process: 598 / 129

On to step 6:
If we divide 598 by 129, we get 4 and a remainder of 82.
Record the quotient 4 as the next digit in the result. 
Result so far: 5844.0
The remainder is 82 after subtracting 516 from 598.
Bring next digit (6) of the dividend behind the 82 and repeat the process: 826 / 129

Going ahead to step 7:
826 divided by 129 is 6 with a remainder of 52.
Use 6 as the next digit of our solution. 
Result so far: 58446.0
If we subtract 774 from 826, we get 52.
Fetch the next digit (5) from the dividend, attach it to 52 and continue: 525 / 129

Advancing to step 8:
When dividing 525 by 129, we get 4 with a remainder of 9.
Write down 4 as next digit of the result. 
Result so far: 584464.0
Subtracting 516 from 525 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 9:
90 divided by 129 is 0 with a remainder of 90.
The next digit of our result is 0. 
Result so far: 584464.0
Deduct 0 from 90 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 10:
129 can be fit into 900 6 times, resulting in a remainder of 126.
The number 6 becomes the next digit in our result. 
Result so far: 584464.06
If we take 774 away from 900, we end up with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

On to step 11:
129 goes into 1260 9 times with a remainder of 99.
Use 9 as the next digit of our solution. 
Result so far: 584464.069
The remainder is 99 after subtracting 1161 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Let's proceed to step 12:
990 divided by 129 is 7 with a remainder of 87.
Use 7 as the next digit of our solution. 
Result so far: 584464.0697
The remainder is 87 after subtracting 903 from 990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 13:
870 divided by 129 is 6 with a remainder of 96.
Put 6 as the next digit of the answer. 
Result so far: 584464.06976
Subtract 774 from 870 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 14:
When dividing 960 by 129, we get 7 with a remainder of 57.
Use 7 as the next digit of our solution. 
Result so far: 584464.069767
The remainder is 57 after subtracting 903 from 960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 15:
The number 129 fits into 570 4 times, leaving a remainder of 54.
Record the quotient 4 as the next digit in the result. 
Result so far: 584464.0697674
Subtract 516 from 570 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 16:
If we divide 540 by 129, we get 4 and a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 584464.06976744
Subtract 516 from 540 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 584464.06976744 with a remainder of 2.4e-08.