53950408 ÷ 324 
The aim is to understand the frequency of 324 in 53950408.

Advancing to step 1:
When dividing 5 by 324, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 324

On to step 2:
324 can be fit into 53 0 times, resulting in a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Fetch the next digit (9) from the dividend, attach it to 53 and continue: 539 / 324

Moving on to step 3:
The number 324 fits into 539 1 times, leaving a remainder of 215.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 324 from 539, we get 215.
Grab the next digit (5) from the dividend, add it to 215, then carry on: 2155 / 324

Moving on to step 4:
324 goes into 2155 6 times with a remainder of 211.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
Deduct 1944 from 2155 and we're left with 211.
Include the next digit (0) from the dividend after 211, then repeat: 2110 / 324

Moving on to step 5:
2110 divided by 324 is 6 with a remainder of 166.
Put 6 as the next digit of the answer. 
Result so far: 166.0
If we subtract 1944 from 2110, we get 166.
Bring next digit (4) of the dividend behind the 166 and repeat the process: 1664 / 324

Going ahead to step 6:
The number 324 fits into 1664 5 times, leaving a remainder of 44.
The number 5 becomes the next digit in our result. 
Result so far: 1665.0
Deduct 1620 from 1664 and we're left with 44.
Append the next digit (0) from the dividend to 44 and continue with: 440 / 324

Moving on to step 7:
If we divide 440 by 324, we get 1 and a remainder of 116.
Use 1 as the next digit of our solution. 
Result so far: 16651.0
Deduct 324 from 440 and we're left with 116.
Fetch the next digit (8) from the dividend, attach it to 116 and continue: 1168 / 324

Advancing to step 8:
1168 divided by 324 is 3 with a remainder of 196.
The next digit of our result is 3. 
Result so far: 166513.0
Deduct 972 from 1168 and we're left with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Advancing to step 9:
1960 divided by 324 is 6 with a remainder of 16.
The next digit of our result is 6. 
Result so far: 166513.6
Subtract 1944 from 1960 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 10:
324 can be fit into 160 0 times, resulting in a remainder of 160.
The next digit of our result is 0. 
Result so far: 166513.6
Subtract 0 from 160 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 11:
The number 324 fits into 1600 4 times, leaving a remainder of 304.
Put 4 as the next digit of the answer. 
Result so far: 166513.604
Subtract 1296 from 1600 to get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

On to step 12:
If we divide 3040 by 324, we get 9 and a remainder of 124.
Use 9 as the next digit of our solution. 
Result so far: 166513.6049
Deduct 2916 from 3040 and we're left with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Moving on to step 13:
The number 324 fits into 1240 3 times, leaving a remainder of 268.
Record the quotient 3 as the next digit in the result. 
Result so far: 166513.60493
If we take 972 away from 1240, we end up with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Step 14:
324 goes into 2680 8 times with a remainder of 88.
Put 8 as the next digit of the answer. 
Result so far: 166513.604938
The remainder is 88 after subtracting 2592 from 2680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 15:
When dividing 880 by 324, we get 2 with a remainder of 232.
Put 2 as the next digit of the answer. 
Result so far: 166513.6049382
The remainder is 232 after subtracting 648 from 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Moving on to step 16:
If we divide 2320 by 324, we get 7 and a remainder of 52.
Record the quotient 7 as the next digit in the result. 
Result so far: 166513.60493827
The remainder is 52 after subtracting 2268 from 2320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 166513.60493827, with a leftover of 5.2e-08.