8566646 ÷ 994 
The aim is to understand the frequency of 994 in 8566646.

Moving on to step 1:
If we divide 8 by 994, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 994

On to step 2:
85 divided by 994 is 0 with a remainder of 85.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Take the next digit (6) from the dividend and append it to 85, then repeat: 856 / 994

Step 3:
994 goes into 856 0 times with a remainder of 856.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 856 after subtracting 0 from 856.
Fetch the next digit (6) from the dividend, attach it to 856 and continue: 8566 / 994

On to step 4:
994 goes into 8566 8 times with a remainder of 614.
The next digit of our result is 8. 
Result so far: 8.0
The remainder is 614 after subtracting 7952 from 8566.
Include the next digit (6) from the dividend after 614, then repeat: 6146 / 994

Advancing to step 5:
994 can be fit into 6146 6 times, resulting in a remainder of 182.
Write down 6 as next digit of the result. 
Result so far: 86.0
The remainder is 182 after subtracting 5964 from 6146.
Bring next digit (4) of the dividend behind the 182 and repeat the process: 1824 / 994

Let's proceed to step 6:
1824 divided by 994 is 1 with a remainder of 830.
The number 1 becomes the next digit in our result. 
Result so far: 861.0
The remainder is 830 after subtracting 994 from 1824.
Include the next digit (6) from the dividend after 830, then repeat: 8306 / 994

Advancing to step 7:
When dividing 8306 by 994, we get 8 with a remainder of 354.
The next digit of our result is 8. 
Result so far: 8618.0
The remainder is 354 after subtracting 7952 from 8306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Let's proceed to step 8:
The number 994 fits into 3540 3 times, leaving a remainder of 558.
Record the quotient 3 as the next digit in the result. 
Result so far: 8618.3
The remainder is 558 after subtracting 2982 from 3540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

Let's proceed to step 9:
When dividing 5580 by 994, we get 5 with a remainder of 610.
Put 5 as the next digit of the answer. 
Result so far: 8618.35
If we subtract 4970 from 5580, we get 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Moving on to step 10:
994 can be fit into 6100 6 times, resulting in a remainder of 136.
The next digit of our result is 6. 
Result so far: 8618.356
If we subtract 5964 from 6100, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 11:
The number 994 fits into 1360 1 times, leaving a remainder of 366.
The number 1 becomes the next digit in our result. 
Result so far: 8618.3561
Deduct 994 from 1360 and we're left with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Let's proceed to step 12:
994 goes into 3660 3 times with a remainder of 678.
Write down 3 as next digit of the result. 
Result so far: 8618.35613
Deduct 2982 from 3660 and we're left with 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

Going ahead to step 13:
6780 divided by 994 is 6 with a remainder of 816.
The number 6 becomes the next digit in our result. 
Result so far: 8618.356136
If we take 5964 away from 6780, we end up with 816.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8160, and continue the process.

Going ahead to step 14:
When dividing 8160 by 994, we get 8 with a remainder of 208.
Write down 8 as next digit of the result. 
Result so far: 8618.3561368
If we take 7952 away from 8160, we end up with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Moving on to step 15:
The number 994 fits into 2080 2 times, leaving a remainder of 92.
Use 2 as the next digit of our solution. 
Result so far: 8618.35613682
If we subtract 1988 from 2080, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

After the division, we end up with 8618.35613682 and a remainder of 9.2e-08.