We look at the division of 185193 by 13 
The aim is to understand the frequency of 13 in 185193.

Advancing to step 1:
1 divided by 13 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 13

Advancing to step 2:
13 goes into 18 1 times with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 13 from 18 and we're left with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 13

Moving on to step 3:
13 goes into 55 4 times with a remainder of 3.
Use 4 as the next digit of our solution. 
Result so far: 14.0
If we take 52 away from 55, we end up with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 13

Advancing to step 4:
13 goes into 31 2 times with a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 142.0
If we subtract 26 from 31, we get 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 13

Step 5:
The number 13 fits into 59 4 times, leaving a remainder of 7.
Write down 4 as next digit of the result. 
Result so far: 1424.0
Subtracting 52 from 59 leaves us with 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 13

Step 6:
The number 13 fits into 73 5 times, leaving a remainder of 8.
The next digit of our result is 5. 
Result so far: 14245.0
Subtract 65 from 73 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
13 can be fit into 80 6 times, resulting in a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 14245.6
Deduct 78 from 80 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
The number 13 fits into 20 1 times, leaving a remainder of 7.
The next digit of our result is 1. 
Result so far: 14245.61
If we take 13 away from 20, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 9:
13 goes into 70 5 times with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 14245.615
If we subtract 65 from 70, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 10:
If we divide 50 by 13, we get 3 and a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 14245.6153
If we take 39 away from 50, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 11:
13 goes into 110 8 times with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 14245.61538
Subtracting 104 from 110 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 12:
60 divided by 13 is 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 14245.615384
Subtracting 52 from 60 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 13:
13 can be fit into 80 6 times, resulting in a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 14245.6153846
Subtracting 78 from 80 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 14:
When dividing 20 by 13, we get 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 14245.61538461
The remainder is 7 after subtracting 13 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final result is 14245.61538461 with a remainder of 7e-09.