We look at the division of 88853423 by 66 
The aim is to understand the frequency of 66 in 88853423.

Let's proceed to step 1:
66 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (8) from the dividend, attach it to 8 and continue: 88 / 66

On to step 2:
88 divided by 66 is 1 with a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 22 after subtracting 66 from 88.
Fetch the next digit (8) from the dividend, attach it to 22 and continue: 228 / 66

Going ahead to step 3:
66 goes into 228 3 times with a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 198 away from 228, we end up with 30.
Bring next digit (5) of the dividend behind the 30 and repeat the process: 305 / 66

On to step 4:
When dividing 305 by 66, we get 4 with a remainder of 41.
Record the quotient 4 as the next digit in the result. 
Result so far: 134.0
Subtracting 264 from 305 leaves us with 41.
Grab the next digit (3) from the dividend, add it to 41, then carry on: 413 / 66

Moving on to step 5:
The number 66 fits into 413 6 times, leaving a remainder of 17.
The number 6 becomes the next digit in our result. 
Result so far: 1346.0
Subtract 396 from 413 to get 17.
Take the next digit (4) from the dividend and append it to 17, then repeat: 174 / 66

Let's proceed to step 6:
174 divided by 66 is 2 with a remainder of 42.
Use 2 as the next digit of our solution. 
Result so far: 13462.0
The remainder is 42 after subtracting 132 from 174.
Bring next digit (2) of the dividend behind the 42 and repeat the process: 422 / 66

Step 7:
The number 66 fits into 422 6 times, leaving a remainder of 26.
Use 6 as the next digit of our solution. 
Result so far: 134626.0
The remainder is 26 after subtracting 396 from 422.
Include the next digit (3) from the dividend after 26, then repeat: 263 / 66

Going ahead to step 8:
If we divide 263 by 66, we get 3 and a remainder of 65.
Record the quotient 3 as the next digit in the result. 
Result so far: 1346263.0
Deduct 198 from 263 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 9:
When dividing 650 by 66, we get 9 with a remainder of 56.
Write down 9 as next digit of the result. 
Result so far: 1346263.9
The remainder is 56 after subtracting 594 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 10:
The number 66 fits into 560 8 times, leaving a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 1346263.98
Subtracting 528 from 560 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 11:
320 divided by 66 is 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 1346263.984
If we take 264 away from 320, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 12:
66 goes into 560 8 times with a remainder of 32.
The next digit of our result is 8. 
Result so far: 1346263.9848
Deduct 528 from 560 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 13:
320 divided by 66 is 4 with a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 1346263.98484
The remainder is 56 after subtracting 264 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 14:
If we divide 560 by 66, we get 8 and a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 1346263.984848
If we subtract 528 from 560, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 15:
If we divide 320 by 66, we get 4 and a remainder of 56.
The next digit of our result is 4. 
Result so far: 1346263.9848484
The remainder is 56 after subtracting 264 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 16:
66 can be fit into 560 8 times, resulting in a remainder of 32.
The next digit of our result is 8. 
Result so far: 1346263.98484848
If we take 528 away from 560, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 1346263.98484848, with a leftover of 3.2e-08.