We look at the division of 20193707 by 324 
The aim is to understand the frequency of 324 in 20193707.

Step 1:
2 divided by 324 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 324

Going ahead to step 2:
324 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Include the next digit (1) from the dividend after 20, then repeat: 201 / 324

On to step 3:
When dividing 201 by 324, we get 0 with a remainder of 201.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 201, we end up with 201.
Bring next digit (9) of the dividend behind the 201 and repeat the process: 2019 / 324

Let's proceed to step 4:
324 can be fit into 2019 6 times, resulting in a remainder of 75.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Deduct 1944 from 2019 and we're left with 75.
Bring next digit (3) of the dividend behind the 75 and repeat the process: 753 / 324

Going ahead to step 5:
When dividing 753 by 324, we get 2 with a remainder of 105.
The number 2 becomes the next digit in our result. 
Result so far: 62.0
Deduct 648 from 753 and we're left with 105.
Include the next digit (7) from the dividend after 105, then repeat: 1057 / 324

Let's proceed to step 6:
1057 divided by 324 is 3 with a remainder of 85.
Put 3 as the next digit of the answer. 
Result so far: 623.0
If we subtract 972 from 1057, we get 85.
Grab the next digit (0) from the dividend, add it to 85, then carry on: 850 / 324

Going ahead to step 7:
The number 324 fits into 850 2 times, leaving a remainder of 202.
The next digit of our result is 2. 
Result so far: 6232.0
If we subtract 648 from 850, we get 202.
Take the next digit (7) from the dividend and append it to 202, then repeat: 2027 / 324

Moving on to step 8:
If we divide 2027 by 324, we get 6 and a remainder of 83.
Write down 6 as next digit of the result. 
Result so far: 62326.0
Subtract 1944 from 2027 to get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Step 9:
324 goes into 830 2 times with a remainder of 182.
Write down 2 as next digit of the result. 
Result so far: 62326.2
The remainder is 182 after subtracting 648 from 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

On to step 10:
When dividing 1820 by 324, we get 5 with a remainder of 200.
Record the quotient 5 as the next digit in the result. 
Result so far: 62326.25
Deduct 1620 from 1820 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 11:
2000 divided by 324 is 6 with a remainder of 56.
The number 6 becomes the next digit in our result. 
Result so far: 62326.256
If we subtract 1944 from 2000, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 12:
324 goes into 560 1 times with a remainder of 236.
Write down 1 as next digit of the result. 
Result so far: 62326.2561
The remainder is 236 after subtracting 324 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Going ahead to step 13:
324 goes into 2360 7 times with a remainder of 92.
Put 7 as the next digit of the answer. 
Result so far: 62326.25617
Subtract 2268 from 2360 to get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 14:
When dividing 920 by 324, we get 2 with a remainder of 272.
Use 2 as the next digit of our solution. 
Result so far: 62326.256172
The remainder is 272 after subtracting 648 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Moving on to step 15:
When dividing 2720 by 324, we get 8 with a remainder of 128.
Write down 8 as next digit of the result. 
Result so far: 62326.2561728
If we take 2592 away from 2720, we end up with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Going ahead to step 16:
1280 divided by 324 is 3 with a remainder of 308.
Record the quotient 3 as the next digit in the result. 
Result so far: 62326.25617283
Subtract 972 from 1280 to get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

The final result is 62326.25617283 with a remainder of 3.08e-07.