121424 ÷ 66 
The aim is to understand the frequency of 66 in 121424.

Moving on to step 1:
66 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 66

Moving on to step 2:
When dividing 12 by 66, we get 0 with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 66

Step 3:
When dividing 121 by 66, we get 1 with a remainder of 55.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 66 away from 121, we end up with 55.
Take the next digit (4) from the dividend and append it to 55, then repeat: 554 / 66

Step 4:
The number 66 fits into 554 8 times, leaving a remainder of 26.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
The remainder is 26 after subtracting 528 from 554.
Bring next digit (2) of the dividend behind the 26 and repeat the process: 262 / 66

On to step 5:
When dividing 262 by 66, we get 3 with a remainder of 64.
Use 3 as the next digit of our solution. 
Result so far: 183.0
The remainder is 64 after subtracting 198 from 262.
Grab the next digit (4) from the dividend, add it to 64, then carry on: 644 / 66

Step 6:
When dividing 644 by 66, we get 9 with a remainder of 50.
Put 9 as the next digit of the answer. 
Result so far: 1839.0
Subtract 594 from 644 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 7:
500 divided by 66 is 7 with a remainder of 38.
The next digit of our result is 7. 
Result so far: 1839.7
Deduct 462 from 500 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 8:
If we divide 380 by 66, we get 5 and a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 1839.75
If we subtract 330 from 380, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
66 can be fit into 500 7 times, resulting in a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 1839.757
If we subtract 462 from 500, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 10:
66 goes into 380 5 times with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 1839.7575
Subtracting 330 from 380 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 11:
66 can be fit into 500 7 times, resulting in a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 1839.75757
Deduct 462 from 500 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 12:
66 can be fit into 380 5 times, resulting in a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 1839.757575
Deduct 330 from 380 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 13:
If we divide 500 by 66, we get 7 and a remainder of 38.
The number 7 becomes the next digit in our result. 
Result so far: 1839.7575757
Deduct 462 from 500 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 14:
When dividing 380 by 66, we get 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 1839.75757575
Subtracting 330 from 380 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

After the division, we end up with 1839.75757575 and a remainder of 5e-08.