We look at the division of 356354 by 13 
The aim is to understand the frequency of 13 in 356354.

Step 1:
When dividing 3 by 13, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 13

Advancing to step 2:
If we divide 35 by 13, we get 2 and a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 26 from 35, we get 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 13

Let's proceed to step 3:
The number 13 fits into 96 7 times, leaving a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 27.0
If we take 91 away from 96, we end up with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 13

Moving on to step 4:
13 goes into 53 4 times with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 274.0
Subtract 52 from 53 to get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 13

Going ahead to step 5:
The number 13 fits into 15 1 times, leaving a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 2741.0
Deduct 13 from 15 and we're left with 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 13

Going ahead to step 6:
If we divide 24 by 13, we get 1 and a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 27411.0
Subtracting 13 from 24 leaves us 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.

Let's proceed to step 7:
If we divide 110 by 13, we get 8 and a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 27411.8
If we subtract 104 from 110, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 8:
When dividing 60 by 13, we get 4 with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 27411.84
If we take 52 away from 60, we end up 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.

Advancing to step 9:
If we divide 80 by 13, we get 6 and a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 27411.846
Subtract 78 from 80 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 10:
13 can be fit into 20 1 times, resulting in a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 27411.8461
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.

Advancing to step 11:
If we divide 70 by 13, we get 5 and a remainder of 5.
The next digit of our result is 5. 
Result so far: 27411.84615
If we take 65 away from 70, 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.

Advancing to step 12:
The number 13 fits into 50 3 times, leaving a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 27411.846153
Subtracting 39 from 50 leaves us 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.

Advancing to step 13:
If we divide 110 by 13, we get 8 and a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 27411.8461538
If we subtract 104 from 110, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 14:
The number 13 fits into 60 4 times, leaving a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 27411.84615384
Subtract 52 from 60 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.

In conclusion, the division gives 27411.84615384 with a balance of 8e-09.