645016 ÷ 77 
Let's see how many times 77 fits into 645016.

On to step 1:
6 divided by 77 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 77

Step 2:
77 goes into 64 0 times with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Take the next digit (5) from the dividend and append it to 64, then repeat: 645 / 77

Moving on to step 3:
645 divided by 77 is 8 with a remainder of 29.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 616 from 645 leaves us with 29.
Grab the next digit (0) from the dividend, add it to 29, then carry on: 290 / 77

Moving on to step 4:
The number 77 fits into 290 3 times, leaving a remainder of 59.
Put 3 as the next digit of the answer. 
Result so far: 83.0
Subtracting 231 from 290 leaves us with 59.
Take the next digit (1) from the dividend and append it to 59, then repeat: 591 / 77

Let's proceed to step 5:
77 can be fit into 591 7 times, resulting in a remainder of 52.
The next digit of our result is 7. 
Result so far: 837.0
Deduct 539 from 591 and we're left with 52.
Bring next digit (6) of the dividend behind the 52 and repeat the process: 526 / 77

Moving on to step 6:
77 can be fit into 526 6 times, resulting in a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 8376.0
Subtracting 462 from 526 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 7:
If we divide 640 by 77, we get 8 and a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 8376.8
Subtracting 616 from 640 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 8:
77 goes into 240 3 times with a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 8376.83
Subtract 231 from 240 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 9:
When dividing 90 by 77, we get 1 with a remainder of 13.
The next digit of our result is 1. 
Result so far: 8376.831
Subtracting 77 from 90 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 10:
77 can be fit into 130 1 times, resulting in a remainder of 53.
The next digit of our result is 1. 
Result so far: 8376.8311
Subtract 77 from 130 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

The final outcome is 8376.8311, with a leftover of 0.00053.