We look at the division of 146106 by 324 
The aim is to understand the frequency of 324 in 146106.

Moving on to step 1:
When dividing 1 by 324, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 324

Step 2:
If we divide 14 by 324, we get 0 and a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 14, we get 14.
Grab the next digit (6) from the dividend, add it to 14, then carry on: 146 / 324

Going ahead to step 3:
When dividing 146 by 324, we get 0 with a remainder of 146.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 146, we get 146.
Bring next digit (1) of the dividend behind the 146 and repeat the process: 1461 / 324

Advancing to step 4:
The number 324 fits into 1461 4 times, leaving a remainder of 165.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 1296 from 1461, we get 165.
Fetch the next digit (0) from the dividend, attach it to 165 and continue: 1650 / 324

Moving on to step 5:
The number 324 fits into 1650 5 times, leaving a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 45.0
Deduct 1620 from 1650 and we're left with 30.
Bring next digit (6) of the dividend behind the 30 and repeat the process: 306 / 324

On to step 6:
324 goes into 306 0 times with a remainder of 306.
Write down 0 as next digit of the result. 
Result so far: 450.0
If we take 0 away from 306, we end up with 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Going ahead to step 7:
If we divide 3060 by 324, we get 9 and a remainder of 144.
Put 9 as the next digit of the answer. 
Result so far: 450.9
If we subtract 2916 from 3060, we get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Let's proceed to step 8:
324 goes into 1440 4 times with a remainder of 144.
Put 4 as the next digit of the answer. 
Result so far: 450.94
Subtracting 1296 from 1440 leaves us with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Advancing to step 9:
324 can be fit into 1440 4 times, resulting in a remainder of 144.
Put 4 as the next digit of the answer. 
Result so far: 450.944
If we take 1296 away from 1440, we end up with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Our division results in 450.944 with a remaining 0.0144.