We look at the division of 42424331 by 324 
The aim is to understand the frequency of 324 in 42424331.

Step 1:
The number 324 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 324

Let's proceed to step 2:
42 divided by 324 is 0 with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Include the next digit (4) from the dividend after 42, then repeat: 424 / 324

Moving on to step 3:
324 can be fit into 424 1 times, resulting in a remainder of 100.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 324 away from 424, we end up with 100.
Bring next digit (2) of the dividend behind the 100 and repeat the process: 1002 / 324

On to step 4:
The number 324 fits into 1002 3 times, leaving a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtract 972 from 1002 to get 30.
Grab the next digit (4) from the dividend, add it to 30, then carry on: 304 / 324

Let's proceed to step 5:
The number 324 fits into 304 0 times, leaving a remainder of 304.
Record the quotient 0 as the next digit in the result. 
Result so far: 130.0
Deduct 0 from 304 and we're left with 304.
Bring next digit (3) of the dividend behind the 304 and repeat the process: 3043 / 324

Let's proceed to step 6:
324 can be fit into 3043 9 times, resulting in a remainder of 127.
Use 9 as the next digit of our solution. 
Result so far: 1309.0
Subtracting 2916 from 3043 leaves us with 127.
Grab the next digit (3) from the dividend, add it to 127, then carry on: 1273 / 324

Advancing to step 7:
324 goes into 1273 3 times with a remainder of 301.
Write down 3 as next digit of the result. 
Result so far: 13093.0
Subtract 972 from 1273 to get 301.
Take the next digit (1) from the dividend and append it to 301, then repeat: 3011 / 324

Moving on to step 8:
324 goes into 3011 9 times with a remainder of 95.
Put 9 as the next digit of the answer. 
Result so far: 130939.0
Subtract 2916 from 3011 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Let's proceed to step 9:
324 goes into 950 2 times with a remainder of 302.
Use 2 as the next digit of our solution. 
Result so far: 130939.2
Subtracting 648 from 950 leaves us with 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Step 10:
324 goes into 3020 9 times with a remainder of 104.
Use 9 as the next digit of our solution. 
Result so far: 130939.29
The remainder is 104 after subtracting 2916 from 3020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 11:
The number 324 fits into 1040 3 times, leaving a remainder of 68.
The number 3 becomes the next digit in our result. 
Result so far: 130939.293
If we take 972 away from 1040, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 12:
680 divided by 324 is 2 with a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 130939.2932
If we take 648 away from 680, 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.

Let's proceed to step 13:
324 goes into 320 0 times with a remainder of 320.
The next digit of our result is 0. 
Result so far: 130939.2932
If we subtract 0 from 320, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 14:
The number 324 fits into 3200 9 times, leaving a remainder of 284.
Write down 9 as next digit of the result. 
Result so far: 130939.293209
If we subtract 2916 from 3200, we get 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Going ahead to step 15:
The number 324 fits into 2840 8 times, leaving a remainder of 248.
Put 8 as the next digit of the answer. 
Result so far: 130939.2932098
The remainder is 248 after subtracting 2592 from 2840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

On to step 16:
324 can be fit into 2480 7 times, resulting in a remainder of 212.
The number 7 becomes the next digit in our result. 
Result so far: 130939.29320987
Subtracting 2268 from 2480 leaves us with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

The quotient of the division is 130939.29320987, and the remainder is 2.12e-07.