66719794 ÷ 823 
Let's see how many times 823 fits into 66719794.

Let's proceed to step 1:
823 can be fit into 6 0 times, resulting in 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.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 823

Going ahead to step 2:
823 goes into 66 0 times with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Bring next digit (7) of the dividend behind the 66 and repeat the process: 667 / 823

Step 3:
667 divided by 823 is 0 with a remainder of 667.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 667 leaves us with 667.
Append the next digit (1) from the dividend to 667 and continue with: 6671 / 823

Step 4:
The number 823 fits into 6671 8 times, leaving a remainder of 87.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 6584 from 6671, we get 87.
Bring next digit (9) of the dividend behind the 87 and repeat the process: 879 / 823

Let's proceed to step 5:
When dividing 879 by 823, we get 1 with a remainder of 56.
Write down 1 as next digit of the result. 
Result so far: 81.0
Deduct 823 from 879 and we're left with 56.
Include the next digit (7) from the dividend after 56, then repeat: 567 / 823

Advancing to step 6:
When dividing 567 by 823, we get 0 with a remainder of 567.
The number 0 becomes the next digit in our result. 
Result so far: 810.0
The remainder is 567 after subtracting 0 from 567.
Append the next digit (9) from the dividend to 567 and continue with: 5679 / 823

Step 7:
When dividing 5679 by 823, we get 6 with a remainder of 741.
Use 6 as the next digit of our solution. 
Result so far: 8106.0
The remainder is 741 after subtracting 4938 from 5679.
Bring next digit (4) of the dividend behind the 741 and repeat the process: 7414 / 823

Moving on to step 8:
The number 823 fits into 7414 9 times, leaving a remainder of 7.
The next digit of our result is 9. 
Result so far: 81069.0
If we take 7407 away from 7414, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 9:
When dividing 70 by 823, we get 0 with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 81069.0
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 10:
823 goes into 700 0 times with a remainder of 700.
Use 0 as the next digit of our solution. 
Result so far: 81069.0
The remainder is 700 after subtracting 0 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

The quotient of the division is 81069.0, and the remainder is 0.7.