We're dividing 77848405 by 129 
We're looking to find how many times 129 goes into 77848405.

Advancing to step 1:
When dividing 7 by 129, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 129

On to step 2:
When dividing 77 by 129, we get 0 with a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Append the next digit (8) from the dividend to 77 and continue with: 778 / 129

On to step 3:
129 goes into 778 6 times with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 774 from 778 and we're left with 4.
Append the next digit (4) from the dividend to 4 and continue with: 44 / 129

Step 4:
If we divide 44 by 129, we get 0 and a remainder of 44.
Use 0 as the next digit of our solution. 
Result so far: 60.0
If we subtract 0 from 44, we get 44.
Append the next digit (8) from the dividend to 44 and continue with: 448 / 129

Going ahead to step 5:
If we divide 448 by 129, we get 3 and a remainder of 61.
The next digit of our result is 3. 
Result so far: 603.0
Subtract 387 from 448 to get 61.
Append the next digit (4) from the dividend to 61 and continue with: 614 / 129

Step 6:
129 can be fit into 614 4 times, resulting in a remainder of 98.
Use 4 as the next digit of our solution. 
Result so far: 6034.0
Deduct 516 from 614 and we're left with 98.
Append the next digit (0) from the dividend to 98 and continue with: 980 / 129

Step 7:
980 divided by 129 is 7 with a remainder of 77.
Record the quotient 7 as the next digit in the result. 
Result so far: 60347.0
The remainder is 77 after subtracting 903 from 980.
Fetch the next digit (5) from the dividend, attach it to 77 and continue: 775 / 129

Moving on to step 8:
129 goes into 775 6 times with a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 603476.0
If we subtract 774 from 775, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 9:
129 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 603476.0
If we take 0 away from 10, we end up 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.

Advancing to step 10:
When dividing 100 by 129, we get 0 with a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 603476.0
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

In conclusion, the division gives 603476.0 with a balance of 0.1.