56664706 ÷ 646 
The aim is to understand the frequency of 646 in 56664706.

Going ahead to step 1:
The number 646 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 646

On to step 2:
646 goes into 56 0 times with a remainder of 56.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 56, we get 56.
Take the next digit (6) from the dividend and append it to 56, then repeat: 566 / 646

Let's proceed to step 3:
The number 646 fits into 566 0 times, leaving a remainder of 566.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 566 to get 566.
Grab the next digit (6) from the dividend, add it to 566, then carry on: 5666 / 646

On to step 4:
The number 646 fits into 5666 8 times, leaving a remainder of 498.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 498 after subtracting 5168 from 5666.
Take the next digit (4) from the dividend and append it to 498, then repeat: 4984 / 646

Advancing to step 5:
4984 divided by 646 is 7 with a remainder of 462.
The number 7 becomes the next digit in our result. 
Result so far: 87.0
Subtracting 4522 from 4984 leaves us with 462.
Append the next digit (7) from the dividend to 462 and continue with: 4627 / 646

Let's proceed to step 6:
646 can be fit into 4627 7 times, resulting in a remainder of 105.
Write down 7 as next digit of the result. 
Result so far: 877.0
If we subtract 4522 from 4627, we get 105.
Grab the next digit (0) from the dividend, add it to 105, then carry on: 1050 / 646

Advancing to step 7:
When dividing 1050 by 646, we get 1 with a remainder of 404.
The number 1 becomes the next digit in our result. 
Result so far: 8771.0
Subtract 646 from 1050 to get 404.
Append the next digit (6) from the dividend to 404 and continue with: 4046 / 646

On to step 8:
When dividing 4046 by 646, we get 6 with a remainder of 170.
Write down 6 as next digit of the result. 
Result so far: 87716.0
The remainder is 170 after subtracting 3876 from 4046.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 9:
646 can be fit into 1700 2 times, resulting in a remainder of 408.
Write down 2 as next digit of the result. 
Result so far: 87716.2
The remainder is 408 after subtracting 1292 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Moving on to step 10:
If we divide 4080 by 646, we get 6 and a remainder of 204.
The next digit of our result is 6. 
Result so far: 87716.26
If we subtract 3876 from 4080, we get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Advancing to step 11:
If we divide 2040 by 646, we get 3 and a remainder of 102.
Use 3 as the next digit of our solution. 
Result so far: 87716.263
Subtracting 1938 from 2040 leaves us with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Step 12:
1020 divided by 646 is 1 with a remainder of 374.
The number 1 becomes the next digit in our result. 
Result so far: 87716.2631
If we take 646 away from 1020, we end up with 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

Going ahead to step 13:
3740 divided by 646 is 5 with a remainder of 510.
Use 5 as the next digit of our solution. 
Result so far: 87716.26315
Subtract 3230 from 3740 to get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

On to step 14:
646 goes into 5100 7 times with a remainder of 578.
Use 7 as the next digit of our solution. 
Result so far: 87716.263157
If we subtract 4522 from 5100, we get 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Let's proceed to step 15:
When dividing 5780 by 646, we get 8 with a remainder of 612.
Put 8 as the next digit of the answer. 
Result so far: 87716.2631578
Subtract 5168 from 5780 to get 612.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6120, and continue the process.

Let's proceed to step 16:
When dividing 6120 by 646, we get 9 with a remainder of 306.
Write down 9 as next digit of the result. 
Result so far: 87716.26315789
The remainder is 306 after subtracting 5814 from 6120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

After the division, we end up with 87716.26315789 and a remainder of 3.06e-07.