65869840 ÷ 77 
Our goal is to divide 65869840 by 77.

Advancing to step 1:
When dividing 6 by 77, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 77

On to step 2:
77 can be fit into 65 0 times, resulting in a remainder of 65.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 65 and we're left with 65.
Bring next digit (8) of the dividend behind the 65 and repeat the process: 658 / 77

Going ahead to step 3:
77 goes into 658 8 times with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 616 from 658, we get 42.
Include the next digit (6) from the dividend after 42, then repeat: 426 / 77

On to step 4:
426 divided by 77 is 5 with a remainder of 41.
Record the quotient 5 as the next digit in the result. 
Result so far: 85.0
If we take 385 away from 426, we end up with 41.
Bring next digit (9) of the dividend behind the 41 and repeat the process: 419 / 77

Moving on to step 5:
If we divide 419 by 77, we get 5 and a remainder of 34.
Use 5 as the next digit of our solution. 
Result so far: 855.0
If we take 385 away from 419, we end up with 34.
Grab the next digit (8) from the dividend, add it to 34, then carry on: 348 / 77

Going ahead to step 6:
77 goes into 348 4 times with a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 8554.0
The remainder is 40 after subtracting 308 from 348.
Grab the next digit (4) from the dividend, add it to 40, then carry on: 404 / 77

Moving on to step 7:
If we divide 404 by 77, we get 5 and a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 85545.0
If we take 385 away from 404, we end up with 19.
Take the next digit (0) from the dividend and append it to 19, then repeat: 190 / 77

Moving on to step 8:
If we divide 190 by 77, we get 2 and a remainder of 36.
The next digit of our result is 2. 
Result so far: 855452.0
Subtract 154 from 190 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 9:
77 can be fit into 360 4 times, resulting in a remainder of 52.
The number 4 becomes the next digit in our result. 
Result so far: 855452.4
If we take 308 away from 360, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 10:
77 can be fit into 520 6 times, resulting in a remainder of 58.
The number 6 becomes the next digit in our result. 
Result so far: 855452.46
If we take 462 away from 520, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 11:
77 can be fit into 580 7 times, resulting in a remainder of 41.
Use 7 as the next digit of our solution. 
Result so far: 855452.467
Subtract 539 from 580 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 12:
The number 77 fits into 410 5 times, leaving a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 855452.4675
Deduct 385 from 410 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 13:
The number 77 fits into 250 3 times, leaving a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 855452.46753
Subtracting 231 from 250 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 14:
The number 77 fits into 190 2 times, leaving a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 855452.467532
Subtract 154 from 190 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 15:
The number 77 fits into 360 4 times, leaving a remainder of 52.
Record the quotient 4 as the next digit in the result. 
Result so far: 855452.4675324
Deduct 308 from 360 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 16:
77 goes into 520 6 times with a remainder of 58.
Use 6 as the next digit of our solution. 
Result so far: 855452.46753246
The remainder is 58 after subtracting 462 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final outcome is 855452.46753246, with a leftover of 5.8e-08.