We're dividing 642748 by 77 
We're looking to find how many times 77 goes into 642748.

Moving on to step 1:
6 divided by 77 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 77

Moving on to step 2:
If we divide 64 by 77, we get 0 and a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Bring next digit (2) of the dividend behind the 64 and repeat the process: 642 / 77

Step 3:
642 divided by 77 is 8 with a remainder of 26.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 616 from 642 and we're left with 26.
Append the next digit (7) from the dividend to 26 and continue with: 267 / 77

Let's proceed to step 4:
77 goes into 267 3 times with a remainder of 36.
Put 3 as the next digit of the answer. 
Result so far: 83.0
If we take 231 away from 267, we end up with 36.
Include the next digit (4) from the dividend after 36, then repeat: 364 / 77

Moving on to step 5:
When dividing 364 by 77, we get 4 with a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 834.0
If we take 308 away from 364, we end up with 56.
Fetch the next digit (8) from the dividend, attach it to 56 and continue: 568 / 77

On to step 6:
568 divided by 77 is 7 with a remainder of 29.
Record the quotient 7 as the next digit in the result. 
Result so far: 8347.0
The remainder is 29 after subtracting 539 from 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 7:
290 divided by 77 is 3 with a remainder of 59.
Put 3 as the next digit of the answer. 
Result so far: 8347.3
Deduct 231 from 290 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 8:
When dividing 590 by 77, we get 7 with a remainder of 51.
Use 7 as the next digit of our solution. 
Result so far: 8347.37
If we subtract 539 from 590, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 9:
The number 77 fits into 510 6 times, leaving a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 8347.376
Subtract 462 from 510 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 10:
When dividing 480 by 77, we get 6 with a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 8347.3766
Subtract 462 from 480 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 8347.3766, with a leftover of 0.00018.