66422397 divided by 821 
We're looking to find how many times 821 goes into 66422397.

Going ahead to step 1:
6 divided by 821 is 0 with 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.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 821

Going ahead to step 2:
If we divide 66 by 821, we get 0 and a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 66 leaves us with 66.
Append the next digit (4) from the dividend to 66 and continue with: 664 / 821

Step 3:
821 goes into 664 0 times with a remainder of 664.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 664, we end up with 664.
Fetch the next digit (2) from the dividend, attach it to 664 and continue: 6642 / 821

Moving on to step 4:
When dividing 6642 by 821, we get 8 with a remainder of 74.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 6568 from 6642, we get 74.
Take the next digit (2) from the dividend and append it to 74, then repeat: 742 / 821

Going ahead to step 5:
742 divided by 821 is 0 with a remainder of 742.
Put 0 as the next digit of the answer. 
Result so far: 80.0
If we subtract 0 from 742, we get 742.
Bring next digit (3) of the dividend behind the 742 and repeat the process: 7423 / 821

Moving on to step 6:
The number 821 fits into 7423 9 times, leaving a remainder of 34.
Write down 9 as next digit of the result. 
Result so far: 809.0
If we take 7389 away from 7423, we end up with 34.
Fetch the next digit (9) from the dividend, attach it to 34 and continue: 349 / 821

Going ahead to step 7:
821 goes into 349 0 times with a remainder of 349.
The next digit of our result is 0. 
Result so far: 8090.0
The remainder is 349 after subtracting 0 from 349.
Append the next digit (7) from the dividend to 349 and continue with: 3497 / 821

Advancing to step 8:
If we divide 3497 by 821, we get 4 and a remainder of 213.
The number 4 becomes the next digit in our result. 
Result so far: 80904.0
Subtract 3284 from 3497 to get 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Advancing to step 9:
When dividing 2130 by 821, we get 2 with a remainder of 488.
Write down 2 as next digit of the result. 
Result so far: 80904.2
The remainder is 488 after subtracting 1642 from 2130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Advancing to step 10:
821 goes into 4880 5 times with a remainder of 775.
The next digit of our result is 5. 
Result so far: 80904.25
If we take 4105 away from 4880, we end up with 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

Let's proceed to step 11:
When dividing 7750 by 821, we get 9 with a remainder of 361.
Use 9 as the next digit of our solution. 
Result so far: 80904.259
The remainder is 361 after subtracting 7389 from 7750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Going ahead to step 12:
When dividing 3610 by 821, we get 4 with a remainder of 326.
The number 4 becomes the next digit in our result. 
Result so far: 80904.2594
Deduct 3284 from 3610 and we're left with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Let's proceed to step 13:
When dividing 3260 by 821, we get 3 with a remainder of 797.
Put 3 as the next digit of the answer. 
Result so far: 80904.25943
If we subtract 2463 from 3260, we get 797.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7970, and continue the process.

Moving on to step 14:
821 can be fit into 7970 9 times, resulting in a remainder of 581.
Put 9 as the next digit of the answer. 
Result so far: 80904.259439
If we subtract 7389 from 7970, we get 581.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5810, and continue the process.

On to step 15:
821 can be fit into 5810 7 times, resulting in a remainder of 63.
Record the quotient 7 as the next digit in the result. 
Result so far: 80904.2594397
Subtract 5747 from 5810 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 16:
630 divided by 821 is 0 with a remainder of 630.
Record the quotient 0 as the next digit in the result. 
Result so far: 80904.2594397
The remainder is 630 after subtracting 0 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

In conclusion, the division gives 80904.2594397 with a balance of 6.3e-07.