We're dividing 66406822 by 863 
The aim is to understand the frequency of 863 in 66406822.

Let's proceed to step 1:
863 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 863

Step 2:
863 can be fit into 66 0 times, resulting in a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Append the next digit (4) from the dividend to 66 and continue with: 664 / 863

On to step 3:
664 divided by 863 is 0 with a remainder of 664.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 664 and we're left with 664.
Include the next digit (0) from the dividend after 664, then repeat: 6640 / 863

Step 4:
If we divide 6640 by 863, we get 7 and a remainder of 599.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 6041 from 6640 to get 599.
Fetch the next digit (6) from the dividend, attach it to 599 and continue: 5996 / 863

Going ahead to step 5:
863 can be fit into 5996 6 times, resulting in a remainder of 818.
The number 6 becomes the next digit in our result. 
Result so far: 76.0
The remainder is 818 after subtracting 5178 from 5996.
Include the next digit (8) from the dividend after 818, then repeat: 8188 / 863

Let's proceed to step 6:
863 can be fit into 8188 9 times, resulting in a remainder of 421.
The number 9 becomes the next digit in our result. 
Result so far: 769.0
Subtracting 7767 from 8188 leaves us with 421.
Include the next digit (2) from the dividend after 421, then repeat: 4212 / 863

Let's proceed to step 7:
863 goes into 4212 4 times with a remainder of 760.
The next digit of our result is 4. 
Result so far: 7694.0
Deduct 3452 from 4212 and we're left with 760.
Grab the next digit (2) from the dividend, add it to 760, then carry on: 7602 / 863

Let's proceed to step 8:
863 goes into 7602 8 times with a remainder of 698.
Write down 8 as next digit of the result. 
Result so far: 76948.0
Deduct 6904 from 7602 and we're left with 698.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6980, and continue the process.

Moving on to step 9:
If we divide 6980 by 863, we get 8 and a remainder of 76.
The next digit of our result is 8. 
Result so far: 76948.8
Deduct 6904 from 6980 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 10:
The number 863 fits into 760 0 times, leaving a remainder of 760.
The number 0 becomes the next digit in our result. 
Result so far: 76948.8
The remainder is 760 after subtracting 0 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Advancing to step 11:
When dividing 7600 by 863, we get 8 with a remainder of 696.
The next digit of our result is 8. 
Result so far: 76948.808
If we take 6904 away from 7600, we end up with 696.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

On to step 12:
863 goes into 6960 8 times with a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 76948.8088
The remainder is 56 after subtracting 6904 from 6960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final outcome is 76948.8088, with a leftover of 0.00056.