Let's divide 66239366 by 331
The aim is to understand the frequency of 331 in 66239366.

Moving on to step 1:
If we divide 6 by 331, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 331

Advancing to step 2:
331 can be fit into 66 0 times, resulting in a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Bring next digit (2) of the dividend behind the 66 and repeat the process: 662 / 331

On to step 3:
331 goes into 662 2 times with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 0 after subtracting 662 from 662.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 331

Step 4:
The number 331 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 20.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 331

Advancing to step 5:
The number 331 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 200.0
Deduct 0 from 39 and we're left with 39.
Grab the next digit (3) from the dividend, add it to 39, then carry on: 393 / 331

On to step 6:
If we divide 393 by 331, we get 1 and a remainder of 62.
Record the quotient 1 as the next digit in the result. 
Result so far: 2001.0
Subtract 331 from 393 to get 62.
Fetch the next digit (6) from the dividend, attach it to 62 and continue: 626 / 331

Going ahead to step 7:
When dividing 626 by 331, we get 1 with a remainder of 295.
Write down 1 as next digit of the result. 
Result so far: 20011.0
Subtract 331 from 626 to get 295.
Fetch the next digit (6) from the dividend, attach it to 295 and continue: 2956 / 331

Going ahead to step 8:
331 goes into 2956 8 times with a remainder of 308.
Use 8 as the next digit of our solution. 
Result so far: 200118.0
Deduct 2648 from 2956 and we're left with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Step 9:
3080 divided by 331 is 9 with a remainder of 101.
The number 9 becomes the next digit in our result. 
Result so far: 200118.9
Subtract 2979 from 3080 to get 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Let's proceed to step 10:
If we divide 1010 by 331, we get 3 and a remainder of 17.
The next digit of our result is 3. 
Result so far: 200118.93
Subtract 993 from 1010 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 11:
If we divide 170 by 331, we get 0 and a remainder of 170.
Use 0 as the next digit of our solution. 
Result so far: 200118.93
Subtract 0 from 170 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 12:
331 can be fit into 1700 5 times, resulting in a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 200118.9305
Deduct 1655 from 1700 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 13:
When dividing 450 by 331, we get 1 with a remainder of 119.
The next digit of our result is 1. 
Result so far: 200118.93051
If we take 331 away from 450, we end up with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Advancing to step 14:
331 can be fit into 1190 3 times, resulting in a remainder of 197.
The number 3 becomes the next digit in our result. 
Result so far: 200118.930513
The remainder is 197 after subtracting 993 from 1190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Step 15:
331 goes into 1970 5 times with a remainder of 315.
Put 5 as the next digit of the answer. 
Result so far: 200118.9305135
If we take 1655 away from 1970, we end up with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Advancing to step 16:
If we divide 3150 by 331, we get 9 and a remainder of 171.
The number 9 becomes the next digit in our result. 
Result so far: 200118.93051359
If we take 2979 away from 3150, we end up with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

In conclusion, the division gives 200118.93051359 with a balance of 1.71e-07.