We're dividing 452761 by 66 
The aim is to understand the frequency of 66 in 452761.

Step 1:
When dividing 4 by 66, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 66

Moving on to step 2:
When dividing 45 by 66, we get 0 with a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Append the next digit (2) from the dividend to 45 and continue with: 452 / 66

Moving on to step 3:
66 can be fit into 452 6 times, resulting in a remainder of 56.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtracting 396 from 452 leaves us with 56.
Grab the next digit (7) from the dividend, add it to 56, then carry on: 567 / 66

Let's proceed to step 4:
When dividing 567 by 66, we get 8 with a remainder of 39.
The next digit of our result is 8. 
Result so far: 68.0
If we subtract 528 from 567, we get 39.
Append the next digit (6) from the dividend to 39 and continue with: 396 / 66

Advancing to step 5:
The number 66 fits into 396 6 times, leaving a remainder of 0.
The next digit of our result is 6. 
Result so far: 686.0
If we subtract 396 from 396, we get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 66

Let's proceed to step 6:
When dividing 1 by 66, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 6860.0
If we take 0 away from 1, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
10 divided by 66 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 6860.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
100 divided by 66 is 1 with a remainder of 34.
The next digit of our result is 1. 
Result so far: 6860.01
If we take 66 away from 100, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 9:
When dividing 340 by 66, we get 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 6860.015
Subtracting 330 from 340 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
66 goes into 100 1 times with a remainder of 34.
Write down 1 as next digit of the result. 
Result so far: 6860.0151
Deduct 66 from 100 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 11:
The number 66 fits into 340 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 6860.01515
Subtract 330 from 340 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 12:
66 can be fit into 100 1 times, resulting in a remainder of 34.
The number 1 becomes the next digit in our result. 
Result so far: 6860.015151
If we subtract 66 from 100, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 13:
66 goes into 340 5 times with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 6860.0151515
If we take 330 away from 340, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 14:
66 goes into 100 1 times with a remainder of 34.
The number 1 becomes the next digit in our result. 
Result so far: 6860.01515151
Subtract 66 from 100 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final outcome is 6860.01515151, with a leftover of 3.4e-08.