212614 divided by 66 
The aim is to understand the frequency of 66 in 212614.

Advancing to step 1:
2 divided by 66 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
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

Advancing to step 2:
If we divide 21 by 66, we get 0 and a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 66

Going ahead to step 3:
When dividing 212 by 66, we get 3 with a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 198 from 212 leaves us with 14.
Append the next digit (6) from the dividend to 14 and continue with: 146 / 66

Advancing to step 4:
66 can be fit into 146 2 times, resulting in a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 32.0
If we subtract 132 from 146, we get 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 66

Advancing to step 5:
141 divided by 66 is 2 with a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 322.0
Subtract 132 from 141 to get 9.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 66

Moving on to step 6:
If we divide 94 by 66, we get 1 and a remainder of 28.
Write down 1 as next digit of the result. 
Result so far: 3221.0
Subtract 66 from 94 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 7:
The number 66 fits into 280 4 times, leaving a remainder of 16.
The next digit of our result is 4. 
Result so far: 3221.4
Subtracting 264 from 280 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
When dividing 160 by 66, we get 2 with a remainder of 28.
The next digit of our result is 2. 
Result so far: 3221.42
Subtract 132 from 160 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
If we divide 280 by 66, we get 4 and a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 3221.424
If we subtract 264 from 280, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
66 can be fit into 160 2 times, resulting in a remainder of 28.
The next digit of our result is 2. 
Result so far: 3221.4242
Deduct 132 from 160 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 11:
280 divided by 66 is 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 3221.42424
If we take 264 away from 280, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 12:
The number 66 fits into 160 2 times, leaving a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 3221.424242
Subtract 132 from 160 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 13:
The number 66 fits into 280 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 3221.4242424
If we take 264 away from 280, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 14:
66 goes into 160 2 times with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 3221.42424242
If we subtract 132 from 160, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final outcome is 3221.42424242, with a leftover of 2.8e-08.