We divide 538973 by 13
The aim is to understand the frequency of 13 in 538973.

Going ahead to step 1:
13 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 13

Advancing to step 2:
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: 4.0
Subtracting 52 from 53 leaves us with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 13

Let's proceed to step 3:
18 divided by 13 is 1 with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 41.0
Subtract 13 from 18 to get 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 13

Going ahead to step 4:
When dividing 59 by 13, we get 4 with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 414.0
Deduct 52 from 59 and we're left with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 13

Advancing to step 5:
If we divide 77 by 13, we get 5 and a remainder of 12.
The next digit of our result is 5. 
Result so far: 4145.0
Subtract 65 from 77 to get 12.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 13

Advancing to step 6:
When dividing 123 by 13, we get 9 with a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 41459.0
Subtract 117 from 123 to 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.

Going ahead to step 7:
When dividing 60 by 13, we get 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 41459.4
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 8:
When dividing 80 by 13, we get 6 with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 41459.46
The remainder is 2 after subtracting 78 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 9:
20 divided by 13 is 1 with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 41459.461
Deduct 13 from 20 and we're left 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 10:
When dividing 70 by 13, we get 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 41459.4615
Subtract 65 from 70 to 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.

Advancing to step 11:
13 can be fit into 50 3 times, resulting in a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 41459.46153
If we subtract 39 from 50, we get 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 12:
If we divide 110 by 13, we get 8 and a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 41459.461538
Deduct 104 from 110 and we're left 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.

Let's proceed to step 13:
60 divided by 13 is 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 41459.4615384
Deduct 52 from 60 and we're left 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 14:
If we divide 80 by 13, we get 6 and a remainder of 2.
The next digit of our result is 6. 
Result so far: 41459.46153846
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.

The final result is 41459.46153846 with a remainder of 2e-09.