77286375 divided by 777 
Our goal is to divide 77286375 by 777.

Step 1:
When dividing 7 by 777, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 777

On to step 2:
777 goes into 77 0 times with a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Fetch the next digit (2) from the dividend, attach it to 77 and continue: 772 / 777

On to step 3:
772 divided by 777 is 0 with a remainder of 772.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 772 to get 772.
Grab the next digit (8) from the dividend, add it to 772, then carry on: 7728 / 777

Going ahead to step 4:
7728 divided by 777 is 9 with a remainder of 735.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 6993 from 7728 leaves us with 735.
Bring next digit (6) of the dividend behind the 735 and repeat the process: 7356 / 777

Advancing to step 5:
The number 777 fits into 7356 9 times, leaving a remainder of 363.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
Subtract 6993 from 7356 to get 363.
Fetch the next digit (3) from the dividend, attach it to 363 and continue: 3633 / 777

Moving on to step 6:
When dividing 3633 by 777, we get 4 with a remainder of 525.
The next digit of our result is 4. 
Result so far: 994.0
Deduct 3108 from 3633 and we're left with 525.
Fetch the next digit (7) from the dividend, attach it to 525 and continue: 5257 / 777

On to step 7:
777 goes into 5257 6 times with a remainder of 595.
The number 6 becomes the next digit in our result. 
Result so far: 9946.0
If we take 4662 away from 5257, we end up with 595.
Take the next digit (5) from the dividend and append it to 595, then repeat: 5955 / 777

Moving on to step 8:
777 goes into 5955 7 times with a remainder of 516.
Put 7 as the next digit of the answer. 
Result so far: 99467.0
If we subtract 5439 from 5955, we get 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

On to step 9:
5160 divided by 777 is 6 with a remainder of 498.
The number 6 becomes the next digit in our result. 
Result so far: 99467.6
Subtracting 4662 from 5160 leaves us with 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

Step 10:
4980 divided by 777 is 6 with a remainder of 318.
The number 6 becomes the next digit in our result. 
Result so far: 99467.66
If we take 4662 away from 4980, we end up with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

After the division, we end up with 99467.66 and a remainder of 0.318.