77904505 ÷ 104 
We want to figure out the number of times 77904505 can be divided by 104.

Step 1:
When dividing 7 by 104, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 104

Step 2:
104 can be fit into 77 0 times, resulting in a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Include the next digit (9) from the dividend after 77, then repeat: 779 / 104

Advancing to step 3:
If we divide 779 by 104, we get 7 and a remainder of 51.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 728 from 779 to get 51.
Append the next digit (0) from the dividend to 51 and continue with: 510 / 104

Let's proceed to step 4:
104 can be fit into 510 4 times, resulting in a remainder of 94.
Use 4 as the next digit of our solution. 
Result so far: 74.0
The remainder is 94 after subtracting 416 from 510.
Bring next digit (4) of the dividend behind the 94 and repeat the process: 944 / 104

Going ahead to step 5:
104 goes into 944 9 times with a remainder of 8.
The next digit of our result is 9. 
Result so far: 749.0
Subtract 936 from 944 to get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 104

Moving on to step 6:
The number 104 fits into 85 0 times, leaving a remainder of 85.
Use 0 as the next digit of our solution. 
Result so far: 7490.0
Deduct 0 from 85 and we're left with 85.
Grab the next digit (0) from the dividend, add it to 85, then carry on: 850 / 104

Advancing to step 7:
104 goes into 850 8 times with a remainder of 18.
The next digit of our result is 8. 
Result so far: 74908.0
Deduct 832 from 850 and we're left with 18.
Bring next digit (5) of the dividend behind the 18 and repeat the process: 185 / 104

Going ahead to step 8:
If we divide 185 by 104, we get 1 and a remainder of 81.
Write down 1 as next digit of the result. 
Result so far: 749081.0
Subtracting 104 from 185 leaves us with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

On to step 9:
810 divided by 104 is 7 with a remainder of 82.
The next digit of our result is 7. 
Result so far: 749081.7
Deduct 728 from 810 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 10:
If we divide 820 by 104, we get 7 and a remainder of 92.
The next digit of our result is 7. 
Result so far: 749081.77
Deduct 728 from 820 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Our division results in 749081.77 with a remaining 0.092.