We're dividing 75904096 by 646 
We're looking to find how many times 646 goes into 75904096.

Going ahead to step 1:
7 divided by 646 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 646

On to step 2:
If we divide 75 by 646, we get 0 and a remainder of 75.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 75 leaves us with 75.
Append the next digit (9) from the dividend to 75 and continue with: 759 / 646

Moving on to step 3:
646 can be fit into 759 1 times, resulting in a remainder of 113.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 646 from 759, we get 113.
Include the next digit (0) from the dividend after 113, then repeat: 1130 / 646

Advancing to step 4:
The number 646 fits into 1130 1 times, leaving a remainder of 484.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
The remainder is 484 after subtracting 646 from 1130.
Bring next digit (4) of the dividend behind the 484 and repeat the process: 4844 / 646

Advancing to step 5:
The number 646 fits into 4844 7 times, leaving a remainder of 322.
The number 7 becomes the next digit in our result. 
Result so far: 117.0
Subtract 4522 from 4844 to get 322.
Grab the next digit (0) from the dividend, add it to 322, then carry on: 3220 / 646

On to step 6:
The number 646 fits into 3220 4 times, leaving a remainder of 636.
Record the quotient 4 as the next digit in the result. 
Result so far: 1174.0
The remainder is 636 after subtracting 2584 from 3220.
Bring next digit (9) of the dividend behind the 636 and repeat the process: 6369 / 646

Going ahead to step 7:
The number 646 fits into 6369 9 times, leaving a remainder of 555.
Put 9 as the next digit of the answer. 
Result so far: 11749.0
Subtracting 5814 from 6369 leaves us with 555.
Bring next digit (6) of the dividend behind the 555 and repeat the process: 5556 / 646

Step 8:
When dividing 5556 by 646, we get 8 with a remainder of 388.
The number 8 becomes the next digit in our result. 
Result so far: 117498.0
If we take 5168 away from 5556, we end up with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Step 9:
When dividing 3880 by 646, we get 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 117498.6
The remainder is 4 after subtracting 3876 from 3880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
The number 646 fits into 40 0 times, leaving a remainder of 40.
The next digit of our result is 0. 
Result so far: 117498.6
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
646 goes into 400 0 times with a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 117498.6
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

In conclusion, the division gives 117498.6 with a balance of 0.04.