359706 divided by 66 
The aim is to understand the frequency of 66 in 359706.

Let's proceed to step 1:
3 divided by 66 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 66

On to step 2:
35 divided by 66 is 0 with a remainder of 35.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 35 leaves us with 35.
Append the next digit (9) from the dividend to 35 and continue with: 359 / 66

On to step 3:
The number 66 fits into 359 5 times, leaving a remainder of 29.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 330 from 359 and we're left with 29.
Append the next digit (7) from the dividend to 29 and continue with: 297 / 66

Step 4:
297 divided by 66 is 4 with a remainder of 33.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
Subtracting 264 from 297 leaves us with 33.
Take the next digit (0) from the dividend and append it to 33, then repeat: 330 / 66

Step 5:
When dividing 330 by 66, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 545.0
If we subtract 330 from 330, we get 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 66

Step 6:
66 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 5450.0
The remainder is 6 after subtracting 0 from 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:
66 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 5450.0
Subtracting 0 from 60 leaves us 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.

Going ahead to step 8:
600 divided by 66 is 9 with a remainder of 6.
The next digit of our result is 9. 
Result so far: 5450.09
Subtracting 594 from 600 leaves us 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.

On to step 9:
If we divide 60 by 66, we get 0 and a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 5450.09
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 10:
The number 66 fits into 600 9 times, leaving a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 5450.0909
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.

Let's proceed to step 11:
When dividing 60 by 66, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 5450.0909
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 12:
600 divided by 66 is 9 with a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 5450.090909
Subtract 594 from 600 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.

Step 13:
66 can be fit into 60 0 times, resulting in a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 5450.090909
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.

Going ahead to step 14:
66 can be fit into 600 9 times, resulting in a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 5450.09090909
Subtracting 594 from 600 leaves us 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.

The final outcome is 5450.09090909, with a leftover of 6e-09.