We divide 30129255 by 777
We want to figure out the number of times 30129255 can be divided by 777.

Advancing to step 1:
The number 777 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 777

Advancing to step 2:
When dividing 30 by 777, we get 0 with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Fetch the next digit (1) from the dividend, attach it to 30 and continue: 301 / 777

Advancing to step 3:
When dividing 301 by 777, we get 0 with a remainder of 301.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 301 to get 301.
Bring next digit (2) of the dividend behind the 301 and repeat the process: 3012 / 777

On to step 4:
777 goes into 3012 3 times with a remainder of 681.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 2331 from 3012 and we're left with 681.
Bring next digit (9) of the dividend behind the 681 and repeat the process: 6819 / 777

Step 5:
The number 777 fits into 6819 8 times, leaving a remainder of 603.
The next digit of our result is 8. 
Result so far: 38.0
The remainder is 603 after subtracting 6216 from 6819.
Fetch the next digit (2) from the dividend, attach it to 603 and continue: 6032 / 777

Step 6:
If we divide 6032 by 777, we get 7 and a remainder of 593.
Write down 7 as next digit of the result. 
Result so far: 387.0
The remainder is 593 after subtracting 5439 from 6032.
Include the next digit (5) from the dividend after 593, then repeat: 5935 / 777

On to step 7:
5935 divided by 777 is 7 with a remainder of 496.
Use 7 as the next digit of our solution. 
Result so far: 3877.0
If we subtract 5439 from 5935, we get 496.
Include the next digit (5) from the dividend after 496, then repeat: 4965 / 777

Step 8:
If we divide 4965 by 777, we get 6 and a remainder of 303.
Use 6 as the next digit of our solution. 
Result so far: 38776.0
Deduct 4662 from 4965 and we're left with 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

On to step 9:
When dividing 3030 by 777, we get 3 with a remainder of 699.
Put 3 as the next digit of the answer. 
Result so far: 38776.3
Deduct 2331 from 3030 and we're left with 699.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6990, and continue the process.

Advancing to step 10:
If we divide 6990 by 777, we get 8 and a remainder of 774.
The number 8 becomes the next digit in our result. 
Result so far: 38776.38
Subtracting 6216 from 6990 leaves us with 774.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7740, and continue the process.

Advancing to step 11:
777 goes into 7740 9 times with a remainder of 747.
Use 9 as the next digit of our solution. 
Result so far: 38776.389
If we take 6993 away from 7740, we end up with 747.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7470, and continue the process.

Advancing to step 12:
If we divide 7470 by 777, we get 9 and a remainder of 477.
Use 9 as the next digit of our solution. 
Result so far: 38776.3899
Deduct 6993 from 7470 and we're left with 477.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

Our division results in 38776.3899 with a remaining 0.00477.