We divide 236187 by 13
The aim is to understand the frequency of 13 in 236187.

Advancing to step 1:
13 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 13

Step 2:
13 can be fit into 23 1 times, resulting in a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 13 from 23 and we're left with 10.
Take the next digit (6) from the dividend and append it to 10, then repeat: 106 / 13

Let's proceed to step 3:
The number 13 fits into 106 8 times, leaving a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 18.0
The remainder is 2 after subtracting 104 from 106.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 13

Advancing to step 4:
13 can be fit into 21 1 times, resulting in a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 181.0
The remainder is 8 after subtracting 13 from 21.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 13

Moving on to step 5:
13 goes into 88 6 times with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 1816.0
If we subtract 78 from 88, we get 10.
Grab the next digit (7) from the dividend, add it to 10, then carry on: 107 / 13

Going ahead to step 6:
The number 13 fits into 107 8 times, leaving a remainder of 3.
The next digit of our result is 8. 
Result so far: 18168.0
If we take 104 away from 107, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
When dividing 30 by 13, we get 2 with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 18168.2
Deduct 26 from 30 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
13 goes into 40 3 times with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 18168.23
Deduct 39 from 40 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 9:
13 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 18168.23
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
13 goes into 100 7 times with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 18168.2307
Subtracting 91 from 100 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 11:
13 goes into 90 6 times with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 18168.23076
Deduct 78 from 90 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 12:
13 can be fit into 120 9 times, resulting in a remainder of 3.
The next digit of our result is 9. 
Result so far: 18168.230769
If we subtract 117 from 120, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 13:
30 divided by 13 is 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 18168.2307692
If we subtract 26 from 30, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 14:
When dividing 40 by 13, we get 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 18168.23076923
The remainder is 1 after subtracting 39 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 18168.23076923 with a remainder of 1e-09.