66223330 divided by 819 
The aim is to understand the frequency of 819 in 66223330.

Step 1:
When dividing 6 by 819, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 819

Going ahead to step 2:
819 goes into 66 0 times with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Grab the next digit (2) from the dividend, add it to 66, then carry on: 662 / 819

On to step 3:
When dividing 662 by 819, we get 0 with a remainder of 662.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 662 leaves us with 662.
Fetch the next digit (2) from the dividend, attach it to 662 and continue: 6622 / 819

Advancing to step 4:
819 can be fit into 6622 8 times, resulting in a remainder of 70.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtract 6552 from 6622 to get 70.
Bring next digit (3) of the dividend behind the 70 and repeat the process: 703 / 819

On to step 5:
819 can be fit into 703 0 times, resulting in a remainder of 703.
Use 0 as the next digit of our solution. 
Result so far: 80.0
Subtracting 0 from 703 leaves us with 703.
Fetch the next digit (3) from the dividend, attach it to 703 and continue: 7033 / 819

Step 6:
819 goes into 7033 8 times with a remainder of 481.
The next digit of our result is 8. 
Result so far: 808.0
Deduct 6552 from 7033 and we're left with 481.
Bring next digit (3) of the dividend behind the 481 and repeat the process: 4813 / 819

Step 7:
4813 divided by 819 is 5 with a remainder of 718.
The next digit of our result is 5. 
Result so far: 8085.0
If we subtract 4095 from 4813, we get 718.
Bring next digit (0) of the dividend behind the 718 and repeat the process: 7180 / 819

Going ahead to step 8:
When dividing 7180 by 819, we get 8 with a remainder of 628.
Write down 8 as next digit of the result. 
Result so far: 80858.0
Subtract 6552 from 7180 to get 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

On to step 9:
If we divide 6280 by 819, we get 7 and a remainder of 547.
The next digit of our result is 7. 
Result so far: 80858.7
Subtracting 5733 from 6280 leaves us with 547.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5470, and continue the process.

Let's proceed to step 10:
819 can be fit into 5470 6 times, resulting in a remainder of 556.
Record the quotient 6 as the next digit in the result. 
Result so far: 80858.76
If we subtract 4914 from 5470, we get 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

On to step 11:
When dividing 5560 by 819, we get 6 with a remainder of 646.
Put 6 as the next digit of the answer. 
Result so far: 80858.766
If we subtract 4914 from 5560, we get 646.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6460, and continue the process.

The final outcome is 80858.766, with a leftover of 0.0646.