Let's divide 77104255 by 138
Let's see how many times 138 fits into 77104255.

Going ahead to step 1:
138 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 138

On to step 2:
When dividing 77 by 138, we get 0 with a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Take the next digit (1) from the dividend and append it to 77, then repeat: 771 / 138

Going ahead to step 3:
138 can be fit into 771 5 times, resulting in a remainder of 81.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 690 from 771 and we're left with 81.
Grab the next digit (0) from the dividend, add it to 81, then carry on: 810 / 138

Step 4:
810 divided by 138 is 5 with a remainder of 120.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
Subtracting 690 from 810 leaves us with 120.
Grab the next digit (4) from the dividend, add it to 120, then carry on: 1204 / 138

Going ahead to step 5:
The number 138 fits into 1204 8 times, leaving a remainder of 100.
The number 8 becomes the next digit in our result. 
Result so far: 558.0
If we subtract 1104 from 1204, we get 100.
Take the next digit (2) from the dividend and append it to 100, then repeat: 1002 / 138

Going ahead to step 6:
138 goes into 1002 7 times with a remainder of 36.
Put 7 as the next digit of the answer. 
Result so far: 5587.0
Subtracting 966 from 1002 leaves us with 36.
Include the next digit (5) from the dividend after 36, then repeat: 365 / 138

Moving on to step 7:
If we divide 365 by 138, we get 2 and a remainder of 89.
The next digit of our result is 2. 
Result so far: 55872.0
The remainder is 89 after subtracting 276 from 365.
Append the next digit (5) from the dividend to 89 and continue with: 895 / 138

Let's proceed to step 8:
When dividing 895 by 138, we get 6 with a remainder of 67.
Write down 6 as next digit of the result. 
Result so far: 558726.0
If we subtract 828 from 895, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 9:
The number 138 fits into 670 4 times, leaving a remainder of 118.
Write down 4 as next digit of the result. 
Result so far: 558726.4
Subtract 552 from 670 to get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Advancing to step 10:
When dividing 1180 by 138, we get 8 with a remainder of 76.
Record the quotient 8 as the next digit in the result. 
Result so far: 558726.48
Subtract 1104 from 1180 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 11:
When dividing 760 by 138, we get 5 with a remainder of 70.
The next digit of our result is 5. 
Result so far: 558726.485
Deduct 690 from 760 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 12:
If we divide 700 by 138, we get 5 and a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 558726.4855
Subtracting 690 from 700 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 558726.4855 with a remaining 0.0001.