We look at the division of 37302979 by 324 
The aim is to understand the frequency of 324 in 37302979.

Step 1:
324 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 324

Advancing to step 2:
324 goes into 37 0 times with a remainder of 37.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 37 and we're left with 37.
Bring next digit (3) of the dividend behind the 37 and repeat the process: 373 / 324

Advancing to step 3:
324 can be fit into 373 1 times, resulting in a remainder of 49.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 324 from 373 leaves us with 49.
Include the next digit (0) from the dividend after 49, then repeat: 490 / 324

Advancing to step 4:
If we divide 490 by 324, we get 1 and a remainder of 166.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we subtract 324 from 490, we get 166.
Grab the next digit (2) from the dividend, add it to 166, then carry on: 1662 / 324

Advancing to step 5:
1662 divided by 324 is 5 with a remainder of 42.
Put 5 as the next digit of the answer. 
Result so far: 115.0
The remainder is 42 after subtracting 1620 from 1662.
Append the next digit (9) from the dividend to 42 and continue with: 429 / 324

Going ahead to step 6:
The number 324 fits into 429 1 times, leaving a remainder of 105.
The next digit of our result is 1. 
Result so far: 1151.0
Subtracting 324 from 429 leaves us with 105.
Include the next digit (7) from the dividend after 105, then repeat: 1057 / 324

Going ahead to step 7:
When dividing 1057 by 324, we get 3 with a remainder of 85.
The number 3 becomes the next digit in our result. 
Result so far: 11513.0
The remainder is 85 after subtracting 972 from 1057.
Grab the next digit (9) from the dividend, add it to 85, then carry on: 859 / 324

Step 8:
859 divided by 324 is 2 with a remainder of 211.
The number 2 becomes the next digit in our result. 
Result so far: 115132.0
The remainder is 211 after subtracting 648 from 859.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Step 9:
The number 324 fits into 2110 6 times, leaving a remainder of 166.
The number 6 becomes the next digit in our result. 
Result so far: 115132.6
If we subtract 1944 from 2110, we get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

On to step 10:
324 can be fit into 1660 5 times, resulting in a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 115132.65
Subtract 1620 from 1660 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 11:
324 goes into 400 1 times with a remainder of 76.
Use 1 as the next digit of our solution. 
Result so far: 115132.651
Deduct 324 from 400 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 12:
324 goes into 760 2 times with a remainder of 112.
The number 2 becomes the next digit in our result. 
Result so far: 115132.6512
Subtract 648 from 760 to 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.

Step 13:
324 goes into 1120 3 times with a remainder of 148.
Write down 3 as next digit of the result. 
Result so far: 115132.65123
Subtracting 972 from 1120 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

On to step 14:
When dividing 1480 by 324, we get 4 with a remainder of 184.
Put 4 as the next digit of the answer. 
Result so far: 115132.651234
Deduct 1296 from 1480 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 15:
The number 324 fits into 1840 5 times, leaving a remainder of 220.
The next digit of our result is 5. 
Result so far: 115132.6512345
If we take 1620 away from 1840, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 16:
324 goes into 2200 6 times with a remainder of 256.
The next digit of our result is 6. 
Result so far: 115132.65123456
If we subtract 1944 from 2200, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

The final result is 115132.65123456 with a remainder of 2.56e-07.