We look at the division of 66756179 by 424 
The aim is to understand the frequency of 424 in 66756179.

Advancing to step 1:
The number 424 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 424

Moving on to step 2:
424 goes into 66 0 times with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Include the next digit (7) from the dividend after 66, then repeat: 667 / 424

Step 3:
The number 424 fits into 667 1 times, leaving a remainder of 243.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 424 from 667 and we're left with 243.
Grab the next digit (5) from the dividend, add it to 243, then carry on: 2435 / 424

Step 4:
When dividing 2435 by 424, we get 5 with a remainder of 315.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we subtract 2120 from 2435, we get 315.
Fetch the next digit (6) from the dividend, attach it to 315 and continue: 3156 / 424

Step 5:
When dividing 3156 by 424, we get 7 with a remainder of 188.
Put 7 as the next digit of the answer. 
Result so far: 157.0
The remainder is 188 after subtracting 2968 from 3156.
Grab the next digit (1) from the dividend, add it to 188, then carry on: 1881 / 424

Let's proceed to step 6:
The number 424 fits into 1881 4 times, leaving a remainder of 185.
Use 4 as the next digit of our solution. 
Result so far: 1574.0
Deduct 1696 from 1881 and we're left with 185.
Bring next digit (7) of the dividend behind the 185 and repeat the process: 1857 / 424

Moving on to step 7:
1857 divided by 424 is 4 with a remainder of 161.
Record the quotient 4 as the next digit in the result. 
Result so far: 15744.0
If we subtract 1696 from 1857, we get 161.
Include the next digit (9) from the dividend after 161, then repeat: 1619 / 424

On to step 8:
1619 divided by 424 is 3 with a remainder of 347.
The number 3 becomes the next digit in our result. 
Result so far: 157443.0
Subtract 1272 from 1619 to get 347.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3470, and continue the process.

Going ahead to step 9:
424 can be fit into 3470 8 times, resulting in a remainder of 78.
The number 8 becomes the next digit in our result. 
Result so far: 157443.8
The remainder is 78 after subtracting 3392 from 3470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 10:
When dividing 780 by 424, we get 1 with a remainder of 356.
Record the quotient 1 as the next digit in the result. 
Result so far: 157443.81
If we take 424 away from 780, we end up with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Let's proceed to step 11:
3560 divided by 424 is 8 with a remainder of 168.
The number 8 becomes the next digit in our result. 
Result so far: 157443.818
If we subtract 3392 from 3560, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 12:
The number 424 fits into 1680 3 times, leaving a remainder of 408.
Write down 3 as next digit of the result. 
Result so far: 157443.8183
Deduct 1272 from 1680 and we're left with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Going ahead to step 13:
424 goes into 4080 9 times with a remainder of 264.
Record the quotient 9 as the next digit in the result. 
Result so far: 157443.81839
If we subtract 3816 from 4080, we get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

On to step 14:
424 can be fit into 2640 6 times, resulting in a remainder of 96.
Use 6 as the next digit of our solution. 
Result so far: 157443.818396
If we take 2544 away from 2640, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Let's proceed to step 15:
424 goes into 960 2 times with a remainder of 112.
The next digit of our result is 2. 
Result so far: 157443.8183962
If we subtract 848 from 960, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Let's proceed to step 16:
1120 divided by 424 is 2 with a remainder of 272.
Use 2 as the next digit of our solution. 
Result so far: 157443.81839622
Subtract 848 from 1120 to get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Our division results in 157443.81839622 with a remaining 2.72e-07.