We divide 66928677 by 820
We want to divide 66928677 by 820.

Going ahead to step 1:
820 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 820

On to step 2:
If we divide 66 by 820, we get 0 and a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Fetch the next digit (9) from the dividend, attach it to 66 and continue: 669 / 820

Moving on to step 3:
820 can be fit into 669 0 times, resulting in a remainder of 669.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 669 leaves us with 669.
Grab the next digit (2) from the dividend, add it to 669, then carry on: 6692 / 820

On to step 4:
6692 divided by 820 is 8 with a remainder of 132.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 6560 from 6692, we get 132.
Include the next digit (8) from the dividend after 132, then repeat: 1328 / 820

Advancing to step 5:
When dividing 1328 by 820, we get 1 with a remainder of 508.
The number 1 becomes the next digit in our result. 
Result so far: 81.0
Subtracting 820 from 1328 leaves us with 508.
Take the next digit (6) from the dividend and append it to 508, then repeat: 5086 / 820

Moving on to step 6:
When dividing 5086 by 820, we get 6 with a remainder of 166.
The number 6 becomes the next digit in our result. 
Result so far: 816.0
If we take 4920 away from 5086, we end up with 166.
Include the next digit (7) from the dividend after 166, then repeat: 1667 / 820

Let's proceed to step 7:
The number 820 fits into 1667 2 times, leaving a remainder of 27.
The number 2 becomes the next digit in our result. 
Result so far: 8162.0
The remainder is 27 after subtracting 1640 from 1667.
Include the next digit (7) from the dividend after 27, then repeat: 277 / 820

On to step 8:
If we divide 277 by 820, we get 0 and a remainder of 277.
Write down 0 as next digit of the result. 
Result so far: 81620.0
Subtracting 0 from 277 leaves us with 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Going ahead to step 9:
If we divide 2770 by 820, we get 3 and a remainder of 310.
Record the quotient 3 as the next digit in the result. 
Result so far: 81620.3
Subtracting 2460 from 2770 leaves us with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Advancing to step 10:
3100 divided by 820 is 3 with a remainder of 640.
Put 3 as the next digit of the answer. 
Result so far: 81620.33
Subtracting 2460 from 3100 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

The final outcome is 81620.33, with a leftover of 0.64.