We look at the division of 66285583 by 819 
Our goal is to divide 66285583 by 819.

Step 1:
819 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 819

On to step 2:
The number 819 fits into 66 0 times, leaving a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Fetch the next digit (2) from the dividend, attach it to 66 and continue: 662 / 819

Moving on to step 3:
If we divide 662 by 819, we get 0 and a remainder of 662.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 662 and we're left with 662.
Append the next digit (8) from the dividend to 662 and continue with: 6628 / 819

Moving on to step 4:
6628 divided by 819 is 8 with a remainder of 76.
The next digit of our result is 8. 
Result so far: 8.0
If we take 6552 away from 6628, we end up with 76.
Fetch the next digit (5) from the dividend, attach it to 76 and continue: 765 / 819

Advancing to step 5:
819 goes into 765 0 times with a remainder of 765.
The next digit of our result is 0. 
Result so far: 80.0
Deduct 0 from 765 and we're left with 765.
Include the next digit (5) from the dividend after 765, then repeat: 7655 / 819

Moving on to step 6:
819 goes into 7655 9 times with a remainder of 284.
The next digit of our result is 9. 
Result so far: 809.0
The remainder is 284 after subtracting 7371 from 7655.
Include the next digit (8) from the dividend after 284, then repeat: 2848 / 819

Step 7:
819 goes into 2848 3 times with a remainder of 391.
Record the quotient 3 as the next digit in the result. 
Result so far: 8093.0
Subtract 2457 from 2848 to get 391.
Fetch the next digit (3) from the dividend, attach it to 391 and continue: 3913 / 819

Let's proceed to step 8:
When dividing 3913 by 819, we get 4 with a remainder of 637.
Write down 4 as next digit of the result. 
Result so far: 80934.0
The remainder is 637 after subtracting 3276 from 3913.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6370, and continue the process.

Step 9:
When dividing 6370 by 819, we get 7 with a remainder of 637.
Record the quotient 7 as the next digit in the result. 
Result so far: 80934.7
The remainder is 637 after subtracting 5733 from 6370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6370, and continue the process.

Going ahead to step 10:
The number 819 fits into 6370 7 times, leaving a remainder of 637.
The next digit of our result is 7. 
Result so far: 80934.77
Subtracting 5733 from 6370 leaves us with 637.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6370, and continue the process.

In conclusion, the division gives 80934.77 with a balance of 0.637.