218318 divided by 66 
The aim is to understand the frequency of 66 in 218318.

Advancing to step 1:
When dividing 2 by 66, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 66

Let's proceed to step 2:
When dividing 21 by 66, we get 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Bring next digit (8) of the dividend behind the 21 and repeat the process: 218 / 66

Let's proceed to step 3:
66 can be fit into 218 3 times, resulting in a remainder of 20.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 198 from 218 to get 20.
Include the next digit (3) from the dividend after 20, then repeat: 203 / 66

Let's proceed to step 4:
If we divide 203 by 66, we get 3 and a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 33.0
If we take 198 away from 203, we end up with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 66

On to step 5:
When dividing 51 by 66, we get 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 330.0
The remainder is 51 after subtracting 0 from 51.
Fetch the next digit (8) from the dividend, attach it to 51 and continue: 518 / 66

Let's proceed to step 6:
When dividing 518 by 66, we get 7 with a remainder of 56.
The next digit of our result is 7. 
Result so far: 3307.0
Subtracting 462 from 518 leaves us 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.

Advancing to step 7:
66 goes into 560 8 times with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 3307.8
Subtract 528 from 560 to 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.

On to step 8:
66 goes into 320 4 times with a remainder of 56.
The next digit of our result is 4. 
Result so far: 3307.84
Subtract 264 from 320 to get 56.
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 9:
66 can be fit into 560 8 times, resulting in a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 3307.848
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.

Step 10:
66 can be fit into 320 4 times, resulting in a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 3307.8484
If we subtract 264 from 320, we get 56.
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 11:
560 divided by 66 is 8 with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 3307.84848
Subtract 528 from 560 to 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.

On to step 12:
If we divide 320 by 66, we get 4 and a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 3307.848484
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.

Let's proceed to step 13:
560 divided by 66 is 8 with a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 3307.8484848
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.

Going ahead to step 14:
When dividing 320 by 66, we get 4 with a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 3307.84848484
Deduct 264 from 320 and we're left 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.

After the division, we end up with 3307.84848484 and a remainder of 5.6e-08.