We're dividing 83338072 by 331 
The aim is to understand the frequency of 331 in 83338072.

Advancing to step 1:
If we divide 8 by 331, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 331

Going ahead to step 2:
When dividing 83 by 331, we get 0 with a remainder of 83.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 83, we end up with 83.
Append the next digit (3) from the dividend to 83 and continue with: 833 / 331

Moving on to step 3:
The number 331 fits into 833 2 times, leaving a remainder of 171.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 662 from 833 to get 171.
Append the next digit (3) from the dividend to 171 and continue with: 1713 / 331

On to step 4:
The number 331 fits into 1713 5 times, leaving a remainder of 58.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
Subtracting 1655 from 1713 leaves us with 58.
Bring next digit (8) of the dividend behind the 58 and repeat the process: 588 / 331

Advancing to step 5:
If we divide 588 by 331, we get 1 and a remainder of 257.
Write down 1 as next digit of the result. 
Result so far: 251.0
If we subtract 331 from 588, we get 257.
Include the next digit (0) from the dividend after 257, then repeat: 2570 / 331

On to step 6:
331 goes into 2570 7 times with a remainder of 253.
Write down 7 as next digit of the result. 
Result so far: 2517.0
The remainder is 253 after subtracting 2317 from 2570.
Include the next digit (7) from the dividend after 253, then repeat: 2537 / 331

Step 7:
If we divide 2537 by 331, we get 7 and a remainder of 220.
Record the quotient 7 as the next digit in the result. 
Result so far: 25177.0
Subtracting 2317 from 2537 leaves us with 220.
Include the next digit (2) from the dividend after 220, then repeat: 2202 / 331

On to step 8:
The number 331 fits into 2202 6 times, leaving a remainder of 216.
The next digit of our result is 6. 
Result so far: 251776.0
Subtract 1986 from 2202 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Step 9:
2160 divided by 331 is 6 with a remainder of 174.
Use 6 as the next digit of our solution. 
Result so far: 251776.6
The remainder is 174 after subtracting 1986 from 2160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 10:
If we divide 1740 by 331, we get 5 and a remainder of 85.
The next digit of our result is 5. 
Result so far: 251776.65
If we subtract 1655 from 1740, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 11:
If we divide 850 by 331, we get 2 and a remainder of 188.
The number 2 becomes the next digit in our result. 
Result so far: 251776.652
If we subtract 662 from 850, we get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Moving on to step 12:
The number 331 fits into 1880 5 times, leaving a remainder of 225.
The number 5 becomes the next digit in our result. 
Result so far: 251776.6525
Subtracting 1655 from 1880 leaves us with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

On to step 13:
When dividing 2250 by 331, we get 6 with a remainder of 264.
Put 6 as the next digit of the answer. 
Result so far: 251776.65256
Subtracting 1986 from 2250 leaves us with 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Advancing to step 14:
If we divide 2640 by 331, we get 7 and a remainder of 323.
Write down 7 as next digit of the result. 
Result so far: 251776.652567
Deduct 2317 from 2640 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.

Moving on to step 15:
331 can be fit into 3230 9 times, resulting in a remainder of 251.
Record the quotient 9 as the next digit in the result. 
Result so far: 251776.6525679
The remainder is 251 after subtracting 2979 from 3230.
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 16:
If we divide 2510 by 331, we get 7 and a remainder of 193.
Use 7 as the next digit of our solution. 
Result so far: 251776.65256797
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.

Our division results in 251776.65256797 with a remaining 1.93e-07.