We look at the division of 80121826 by 324 
The aim is to understand the frequency of 324 in 80121826.

Step 1:
324 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 324

Going ahead to step 2:
When dividing 80 by 324, we get 0 with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Append the next digit (1) from the dividend to 80 and continue with: 801 / 324

Going ahead to step 3:
If we divide 801 by 324, we get 2 and a remainder of 153.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 153 after subtracting 648 from 801.
Fetch the next digit (2) from the dividend, attach it to 153 and continue: 1532 / 324

Advancing to step 4:
When dividing 1532 by 324, we get 4 with a remainder of 236.
Put 4 as the next digit of the answer. 
Result so far: 24.0
The remainder is 236 after subtracting 1296 from 1532.
Include the next digit (1) from the dividend after 236, then repeat: 2361 / 324

Let's proceed to step 5:
If we divide 2361 by 324, we get 7 and a remainder of 93.
Use 7 as the next digit of our solution. 
Result so far: 247.0
Subtract 2268 from 2361 to get 93.
Take the next digit (8) from the dividend and append it to 93, then repeat: 938 / 324

On to step 6:
324 goes into 938 2 times with a remainder of 290.
The next digit of our result is 2. 
Result so far: 2472.0
If we subtract 648 from 938, we get 290.
Fetch the next digit (2) from the dividend, attach it to 290 and continue: 2902 / 324

Step 7:
The number 324 fits into 2902 8 times, leaving a remainder of 310.
Put 8 as the next digit of the answer. 
Result so far: 24728.0
If we subtract 2592 from 2902, we get 310.
Grab the next digit (6) from the dividend, add it to 310, then carry on: 3106 / 324

Moving on to step 8:
When dividing 3106 by 324, we get 9 with a remainder of 190.
The number 9 becomes the next digit in our result. 
Result so far: 247289.0
The remainder is 190 after subtracting 2916 from 3106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 9:
When dividing 1900 by 324, we get 5 with a remainder of 280.
The number 5 becomes the next digit in our result. 
Result so far: 247289.5
Subtract 1620 from 1900 to get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 10:
324 goes into 2800 8 times with a remainder of 208.
Put 8 as the next digit of the answer. 
Result so far: 247289.58
Subtracting 2592 from 2800 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

On to step 11:
2080 divided by 324 is 6 with a remainder of 136.
Write down 6 as next digit of the result. 
Result so far: 247289.586
If we subtract 1944 from 2080, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 12:
324 can be fit into 1360 4 times, resulting in a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 247289.5864
Subtracting 1296 from 1360 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 13:
If we divide 640 by 324, we get 1 and a remainder of 316.
Put 1 as the next digit of the answer. 
Result so far: 247289.58641
If we subtract 324 from 640, we get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Advancing to step 14:
When dividing 3160 by 324, we get 9 with a remainder of 244.
Record the quotient 9 as the next digit in the result. 
Result so far: 247289.586419
If we subtract 2916 from 3160, we get 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Advancing to step 15:
324 can be fit into 2440 7 times, resulting in a remainder of 172.
The next digit of our result is 7. 
Result so far: 247289.5864197
If we take 2268 away from 2440, we end up with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

On to step 16:
If we divide 1720 by 324, we get 5 and a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 247289.58641975
Deduct 1620 from 1720 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Our division results in 247289.58641975 with a remaining 1e-07.