55731520 ÷ 77 
We want to divide 55731520 by 77.

On to step 1:
77 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 77

Going ahead to step 2:
77 can be fit into 55 0 times, resulting in a remainder of 55.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 55 after subtracting 0 from 55.
Grab the next digit (7) from the dividend, add it to 55, then carry on: 557 / 77

Going ahead to step 3:
The number 77 fits into 557 7 times, leaving a remainder of 18.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 539 away from 557, we end up with 18.
Fetch the next digit (3) from the dividend, attach it to 18 and continue: 183 / 77

Advancing to step 4:
77 can be fit into 183 2 times, resulting in a remainder of 29.
The next digit of our result is 2. 
Result so far: 72.0
Subtracting 154 from 183 leaves us with 29.
Bring next digit (1) of the dividend behind the 29 and repeat the process: 291 / 77

On to step 5:
77 goes into 291 3 times with a remainder of 60.
Record the quotient 3 as the next digit in the result. 
Result so far: 723.0
Deduct 231 from 291 and we're left with 60.
Grab the next digit (5) from the dividend, add it to 60, then carry on: 605 / 77

Going ahead to step 6:
605 divided by 77 is 7 with a remainder of 66.
The next digit of our result is 7. 
Result so far: 7237.0
Deduct 539 from 605 and we're left with 66.
Take the next digit (2) from the dividend and append it to 66, then repeat: 662 / 77

Advancing to step 7:
77 goes into 662 8 times with a remainder of 46.
Put 8 as the next digit of the answer. 
Result so far: 72378.0
If we subtract 616 from 662, we get 46.
Bring next digit (0) of the dividend behind the 46 and repeat the process: 460 / 77

Step 8:
77 can be fit into 460 5 times, resulting in a remainder of 75.
The next digit of our result is 5. 
Result so far: 723785.0
Subtract 385 from 460 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 9:
750 divided by 77 is 9 with a remainder of 57.
Use 9 as the next digit of our solution. 
Result so far: 723785.9
If we subtract 693 from 750, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 10:
77 can be fit into 570 7 times, resulting in a remainder of 31.
The next digit of our result is 7. 
Result so far: 723785.97
The remainder is 31 after subtracting 539 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 11:
If we divide 310 by 77, we get 4 and a remainder of 2.
The next digit of our result is 4. 
Result so far: 723785.974
The remainder is 2 after subtracting 308 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 12:
If we divide 20 by 77, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 723785.974
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
77 goes into 200 2 times with a remainder of 46.
Put 2 as the next digit of the answer. 
Result so far: 723785.97402
The remainder is 46 after subtracting 154 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 14:
The number 77 fits into 460 5 times, leaving a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 723785.974025
Subtract 385 from 460 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 15:
When dividing 750 by 77, we get 9 with a remainder of 57.
Put 9 as the next digit of the answer. 
Result so far: 723785.9740259
The remainder is 57 after subtracting 693 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 16:
The number 77 fits into 570 7 times, leaving a remainder of 31.
Record the quotient 7 as the next digit in the result. 
Result so far: 723785.97402597
If we take 539 away from 570, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

The final outcome is 723785.97402597, with a leftover of 3.1e-08.