56804057 ÷ 666 
The aim is to understand the frequency of 666 in 56804057.

Let's proceed to step 1:
666 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 666

Going ahead to step 2:
56 divided by 666 is 0 with a remainder of 56.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 56 leaves us with 56.
Take the next digit (8) from the dividend and append it to 56, then repeat: 568 / 666

Advancing to step 3:
666 goes into 568 0 times with a remainder of 568.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 568 and we're left with 568.
Bring next digit (0) of the dividend behind the 568 and repeat the process: 5680 / 666

Going ahead to step 4:
666 goes into 5680 8 times with a remainder of 352.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 5328 from 5680 to get 352.
Grab the next digit (4) from the dividend, add it to 352, then carry on: 3524 / 666

Moving on to step 5:
3524 divided by 666 is 5 with a remainder of 194.
The number 5 becomes the next digit in our result. 
Result so far: 85.0
If we take 3330 away from 3524, we end up with 194.
Take the next digit (0) from the dividend and append it to 194, then repeat: 1940 / 666

Moving on to step 6:
666 goes into 1940 2 times with a remainder of 608.
Put 2 as the next digit of the answer. 
Result so far: 852.0
If we subtract 1332 from 1940, we get 608.
Bring next digit (5) of the dividend behind the 608 and repeat the process: 6085 / 666

Going ahead to step 7:
When dividing 6085 by 666, we get 9 with a remainder of 91.
The next digit of our result is 9. 
Result so far: 8529.0
Subtracting 5994 from 6085 leaves us with 91.
Fetch the next digit (7) from the dividend, attach it to 91 and continue: 917 / 666

Let's proceed to step 8:
666 goes into 917 1 times with a remainder of 251.
The next digit of our result is 1. 
Result so far: 85291.0
If we subtract 666 from 917, we get 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Let's proceed to step 9:
The number 666 fits into 2510 3 times, leaving a remainder of 512.
Use 3 as the next digit of our solution. 
Result so far: 85291.3
If we take 1998 away from 2510, we end up with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Let's proceed to step 10:
666 goes into 5120 7 times with a remainder of 458.
Put 7 as the next digit of the answer. 
Result so far: 85291.37
The remainder is 458 after subtracting 4662 from 5120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Moving on to step 11:
When dividing 4580 by 666, we get 6 with a remainder of 584.
The next digit of our result is 6. 
Result so far: 85291.376
Subtracting 3996 from 4580 leaves us with 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Step 12:
666 goes into 5840 8 times with a remainder of 512.
Write down 8 as next digit of the result. 
Result so far: 85291.3768
If we take 5328 away from 5840, we end up with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

On to step 13:
666 can be fit into 5120 7 times, resulting in a remainder of 458.
Use 7 as the next digit of our solution. 
Result so far: 85291.37687
Subtracting 4662 from 5120 leaves us with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Advancing to step 14:
The number 666 fits into 4580 6 times, leaving a remainder of 584.
Put 6 as the next digit of the answer. 
Result so far: 85291.376876
If we subtract 3996 from 4580, we get 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Advancing to step 15:
666 can be fit into 5840 8 times, resulting in a remainder of 512.
The number 8 becomes the next digit in our result. 
Result so far: 85291.3768768
Deduct 5328 from 5840 and we're left with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Step 16:
When dividing 5120 by 666, we get 7 with a remainder of 458.
The number 7 becomes the next digit in our result. 
Result so far: 85291.37687687
Deduct 4662 from 5120 and we're left with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Our division results in 85291.37687687 with a remaining 4.58e-07.