71683605 divided by 324 
The aim is to understand the frequency of 324 in 71683605.

On to step 1:
If we divide 7 by 324, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 324

Let's proceed to step 2:
When dividing 71 by 324, we get 0 with a remainder of 71.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Take the next digit (6) from the dividend and append it to 71, then repeat: 716 / 324

Let's proceed to step 3:
324 can be fit into 716 2 times, resulting in a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 648 away from 716, we end up with 68.
Fetch the next digit (8) from the dividend, attach it to 68 and continue: 688 / 324

Advancing to step 4:
324 can be fit into 688 2 times, resulting in a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 22.0
The remainder is 40 after subtracting 648 from 688.
Bring next digit (3) of the dividend behind the 40 and repeat the process: 403 / 324

Going ahead to step 5:
If we divide 403 by 324, we get 1 and a remainder of 79.
Put 1 as the next digit of the answer. 
Result so far: 221.0
Deduct 324 from 403 and we're left with 79.
Append the next digit (6) from the dividend to 79 and continue with: 796 / 324

On to step 6:
The number 324 fits into 796 2 times, leaving a remainder of 148.
Use 2 as the next digit of our solution. 
Result so far: 2212.0
Subtracting 648 from 796 leaves us with 148.
Include the next digit (0) from the dividend after 148, then repeat: 1480 / 324

Step 7:
When dividing 1480 by 324, we get 4 with a remainder of 184.
The number 4 becomes the next digit in our result. 
Result so far: 22124.0
The remainder is 184 after subtracting 1296 from 1480.
Take the next digit (5) from the dividend and append it to 184, then repeat: 1845 / 324

On to step 8:
If we divide 1845 by 324, we get 5 and a remainder of 225.
Write down 5 as next digit of the result. 
Result so far: 221245.0
The remainder is 225 after subtracting 1620 from 1845.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Going ahead to step 9:
If we divide 2250 by 324, we get 6 and a remainder of 306.
Put 6 as the next digit of the answer. 
Result so far: 221245.6
If we subtract 1944 from 2250, we get 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Step 10:
324 can be fit into 3060 9 times, resulting in a remainder of 144.
The next digit of our result is 9. 
Result so far: 221245.69
Subtracting 2916 from 3060 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.

On to step 11:
1440 divided by 324 is 4 with a remainder of 144.
The number 4 becomes the next digit in our result. 
Result so far: 221245.694
The remainder is 144 after subtracting 1296 from 1440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Moving on to step 12:
If we divide 1440 by 324, we get 4 and a remainder of 144.
Record the quotient 4 as the next digit in the result. 
Result so far: 221245.6944
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.

Our division results in 221245.6944 with a remaining 0.00144.