We look at the division of 30163337 by 231 
The aim is to understand the frequency of 231 in 30163337.

Going ahead to step 1:
If we divide 3 by 231, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 231

Let's proceed to step 2:
When dividing 30 by 231, we get 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Fetch the next digit (1) from the dividend, attach it to 30 and continue: 301 / 231

On to step 3:
231 can be fit into 301 1 times, resulting in a remainder of 70.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 231 from 301 leaves us with 70.
Take the next digit (6) from the dividend and append it to 70, then repeat: 706 / 231

Step 4:
If we divide 706 by 231, we get 3 and a remainder of 13.
The next digit of our result is 3. 
Result so far: 13.0
The remainder is 13 after subtracting 693 from 706.
Include the next digit (3) from the dividend after 13, then repeat: 133 / 231

Moving on to step 5:
231 goes into 133 0 times with a remainder of 133.
The number 0 becomes the next digit in our result. 
Result so far: 130.0
Subtract 0 from 133 to get 133.
Fetch the next digit (3) from the dividend, attach it to 133 and continue: 1333 / 231

Step 6:
When dividing 1333 by 231, we get 5 with a remainder of 178.
The next digit of our result is 5. 
Result so far: 1305.0
Subtracting 1155 from 1333 leaves us with 178.
Grab the next digit (3) from the dividend, add it to 178, then carry on: 1783 / 231

Advancing to step 7:
When dividing 1783 by 231, we get 7 with a remainder of 166.
The next digit of our result is 7. 
Result so far: 13057.0
Subtract 1617 from 1783 to get 166.
Grab the next digit (7) from the dividend, add it to 166, then carry on: 1667 / 231

Moving on to step 8:
The number 231 fits into 1667 7 times, leaving a remainder of 50.
Record the quotient 7 as the next digit in the result. 
Result so far: 130577.0
Subtract 1617 from 1667 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 9:
If we divide 500 by 231, we get 2 and a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 130577.2
If we subtract 462 from 500, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 10:
231 can be fit into 380 1 times, resulting in a remainder of 149.
Use 1 as the next digit of our solution. 
Result so far: 130577.21
If we take 231 away from 380, we end up with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Advancing to step 11:
231 goes into 1490 6 times with a remainder of 104.
Use 6 as the next digit of our solution. 
Result so far: 130577.216
Subtracting 1386 from 1490 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Moving on to step 12:
231 goes into 1040 4 times with a remainder of 116.
Record the quotient 4 as the next digit in the result. 
Result so far: 130577.2164
Subtracting 924 from 1040 leaves us with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Let's proceed to step 13:
231 goes into 1160 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 130577.21645
If we take 1155 away from 1160, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 14:
231 goes into 50 0 times with a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 130577.21645
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 15:
231 goes into 500 2 times with a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 130577.2164502
Subtract 462 from 500 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 16:
380 divided by 231 is 1 with a remainder of 149.
Use 1 as the next digit of our solution. 
Result so far: 130577.21645021
If we take 231 away from 380, we end up with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Our division results in 130577.21645021 with a remaining 1.49e-07.