We're dividing 77772861 by 321 
We want to divide 77772861 by 321.

Moving on to step 1:
The number 321 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 321

Moving on to step 2:
321 can be fit into 77 0 times, resulting in a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Append the next digit (7) from the dividend to 77 and continue with: 777 / 321

On to step 3:
777 divided by 321 is 2 with a remainder of 135.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 642 away from 777, we end up with 135.
Bring next digit (7) of the dividend behind the 135 and repeat the process: 1357 / 321

Step 4:
The number 321 fits into 1357 4 times, leaving a remainder of 73.
The next digit of our result is 4. 
Result so far: 24.0
The remainder is 73 after subtracting 1284 from 1357.
Fetch the next digit (2) from the dividend, attach it to 73 and continue: 732 / 321

Step 5:
321 can be fit into 732 2 times, resulting in a remainder of 90.
Put 2 as the next digit of the answer. 
Result so far: 242.0
Subtract 642 from 732 to get 90.
Fetch the next digit (8) from the dividend, attach it to 90 and continue: 908 / 321

Moving on to step 6:
908 divided by 321 is 2 with a remainder of 266.
Record the quotient 2 as the next digit in the result. 
Result so far: 2422.0
Subtracting 642 from 908 leaves us with 266.
Grab the next digit (6) from the dividend, add it to 266, then carry on: 2666 / 321

Going ahead to step 7:
When dividing 2666 by 321, we get 8 with a remainder of 98.
The next digit of our result is 8. 
Result so far: 24228.0
The remainder is 98 after subtracting 2568 from 2666.
Grab the next digit (1) from the dividend, add it to 98, then carry on: 981 / 321

Moving on to step 8:
981 divided by 321 is 3 with a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 242283.0
Deduct 963 from 981 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 9:
321 goes into 180 0 times with a remainder of 180.
The next digit of our result is 0. 
Result so far: 242283.0
Subtracting 0 from 180 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 10:
321 goes into 1800 5 times with a remainder of 195.
The number 5 becomes the next digit in our result. 
Result so far: 242283.05
Subtracting 1605 from 1800 leaves us with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

On to step 11:
321 can be fit into 1950 6 times, resulting in a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 242283.056
The remainder is 24 after subtracting 1926 from 1950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 12:
240 divided by 321 is 0 with a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 242283.056
If we take 0 away from 240, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 13:
The number 321 fits into 2400 7 times, leaving a remainder of 153.
Record the quotient 7 as the next digit in the result. 
Result so far: 242283.05607
The remainder is 153 after subtracting 2247 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

On to step 14:
When dividing 1530 by 321, we get 4 with a remainder of 246.
The next digit of our result is 4. 
Result so far: 242283.056074
Deduct 1284 from 1530 and we're left with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Step 15:
2460 divided by 321 is 7 with a remainder of 213.
Put 7 as the next digit of the answer. 
Result so far: 242283.0560747
If we take 2247 away from 2460, we end up with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

On to step 16:
The number 321 fits into 2130 6 times, leaving a remainder of 204.
Use 6 as the next digit of our solution. 
Result so far: 242283.05607476
The remainder is 204 after subtracting 1926 from 2130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

The quotient of the division is 242283.05607476, and the remainder is 2.04e-07.