446628 ÷ 66 
The aim is to understand the frequency of 66 in 446628.

Moving on to step 1:
4 divided by 66 is 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 66

On to step 2:
If we divide 44 by 66, we get 0 and a remainder of 44.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 44 to get 44.
Fetch the next digit (6) from the dividend, attach it to 44 and continue: 446 / 66

Step 3:
66 can be fit into 446 6 times, resulting in a remainder of 50.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 50 after subtracting 396 from 446.
Fetch the next digit (6) from the dividend, attach it to 50 and continue: 506 / 66

Advancing to step 4:
506 divided by 66 is 7 with a remainder of 44.
Write down 7 as next digit of the result. 
Result so far: 67.0
Deduct 462 from 506 and we're left with 44.
Take the next digit (2) from the dividend and append it to 44, then repeat: 442 / 66

Advancing to step 5:
66 can be fit into 442 6 times, resulting in a remainder of 46.
Use 6 as the next digit of our solution. 
Result so far: 676.0
Subtracting 396 from 442 leaves us with 46.
Bring next digit (8) of the dividend behind the 46 and repeat the process: 468 / 66

On to step 6:
When dividing 468 by 66, we get 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 6767.0
Subtract 462 from 468 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
The number 66 fits into 60 0 times, leaving a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 6767.0
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 8:
If we divide 600 by 66, we get 9 and a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 6767.09
If we subtract 594 from 600, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 9:
If we divide 60 by 66, we get 0 and a remainder of 60.
The next digit of our result is 0. 
Result so far: 6767.09
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 10:
66 can be fit into 600 9 times, resulting in a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 6767.0909
Deduct 594 from 600 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 11:
The number 66 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 6767.0909
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 12:
600 divided by 66 is 9 with a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 6767.090909
Deduct 594 from 600 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 13:
66 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 6767.090909
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 14:
66 can be fit into 600 9 times, resulting in a remainder of 6.
The next digit of our result is 9. 
Result so far: 6767.09090909
Deduct 594 from 600 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

After the division, we end up with 6767.09090909 and a remainder of 6e-09.