We look at the division of 77143845 by 331 
The aim is to understand the frequency of 331 in 77143845.

On to step 1:
The number 331 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 331

Step 2:
331 goes into 77 0 times with a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Grab the next digit (1) from the dividend, add it to 77, then carry on: 771 / 331

Let's proceed to step 3:
When dividing 771 by 331, we get 2 with a remainder of 109.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 109 after subtracting 662 from 771.
Grab the next digit (4) from the dividend, add it to 109, then carry on: 1094 / 331

On to step 4:
If we divide 1094 by 331, we get 3 and a remainder of 101.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Deduct 993 from 1094 and we're left with 101.
Grab the next digit (3) from the dividend, add it to 101, then carry on: 1013 / 331

Going ahead to step 5:
1013 divided by 331 is 3 with a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 233.0
Subtract 993 from 1013 to get 20.
Grab the next digit (8) from the dividend, add it to 20, then carry on: 208 / 331

Going ahead to step 6:
When dividing 208 by 331, we get 0 with a remainder of 208.
Write down 0 as next digit of the result. 
Result so far: 2330.0
Subtracting 0 from 208 leaves us with 208.
Fetch the next digit (4) from the dividend, attach it to 208 and continue: 2084 / 331

Let's proceed to step 7:
When dividing 2084 by 331, we get 6 with a remainder of 98.
Use 6 as the next digit of our solution. 
Result so far: 23306.0
If we subtract 1986 from 2084, we get 98.
Append the next digit (5) from the dividend to 98 and continue with: 985 / 331

Let's proceed to step 8:
985 divided by 331 is 2 with a remainder of 323.
Use 2 as the next digit of our solution. 
Result so far: 233062.0
Deduct 662 from 985 and we're left with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Step 9:
If we divide 3230 by 331, we get 9 and a remainder of 251.
The next digit of our result is 9. 
Result so far: 233062.9
If we subtract 2979 from 3230, we get 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Moving on to step 10:
331 can be fit into 2510 7 times, resulting in a remainder of 193.
The number 7 becomes the next digit in our result. 
Result so far: 233062.97
Subtract 2317 from 2510 to get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Going ahead to step 11:
The number 331 fits into 1930 5 times, leaving a remainder of 275.
The number 5 becomes the next digit in our result. 
Result so far: 233062.975
If we take 1655 away from 1930, we end up with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Let's proceed to step 12:
331 can be fit into 2750 8 times, resulting in a remainder of 102.
Write down 8 as next digit of the result. 
Result so far: 233062.9758
Deduct 2648 from 2750 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Step 13:
331 can be fit into 1020 3 times, resulting in a remainder of 27.
The next digit of our result is 3. 
Result so far: 233062.97583
The remainder is 27 after subtracting 993 from 1020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 14:
331 can be fit into 270 0 times, resulting in a remainder of 270.
Use 0 as the next digit of our solution. 
Result so far: 233062.97583
The remainder is 270 after subtracting 0 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Let's proceed to step 15:
331 can be fit into 2700 8 times, resulting in a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 233062.9758308
Subtract 2648 from 2700 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 16:
331 goes into 520 1 times with a remainder of 189.
Write down 1 as next digit of the result. 
Result so far: 233062.97583081
If we take 331 away from 520, we end up with 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

In conclusion, the division gives 233062.97583081 with a balance of 1.89e-07.