994373 ÷ 13 
The aim is to understand the frequency of 13 in 994373.

Moving on to step 1:
9 divided by 13 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 13

Advancing to step 2:
99 divided by 13 is 7 with a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 91 from 99 and we're left with 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 13

Step 3:
13 can be fit into 84 6 times, resulting in a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 76.0
Subtract 78 from 84 to get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 13

Advancing to step 4:
When dividing 63 by 13, we get 4 with a remainder of 11.
Put 4 as the next digit of the answer. 
Result so far: 764.0
If we take 52 away from 63, we end up with 11.
Take the next digit (7) from the dividend and append it to 11, then repeat: 117 / 13

Going ahead to step 5:
If we divide 117 by 13, we get 9 and a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 7649.0
The remainder is 0 after subtracting 117 from 117.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 13

On to step 6:
3 divided by 13 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 76490.0
If we take 0 away from 3, 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.

Advancing to step 7:
13 goes into 30 2 times with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 76490.2
Subtracting 26 from 30 leaves us 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.

Advancing to step 8:
13 goes into 40 3 times with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 76490.23
Subtracting 39 from 40 leaves us 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.

Step 9:
When dividing 10 by 13, we get 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 76490.23
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 10:
If we divide 100 by 13, we get 7 and a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 76490.2307
If we take 91 away from 100, we end up 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.

Advancing to 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: 76490.23076
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.

Let's proceed to step 12:
120 divided by 13 is 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 76490.230769
The remainder is 3 after subtracting 117 from 120.
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:
When dividing 30 by 13, we get 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 76490.2307692
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 14:
When dividing 40 by 13, we get 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 76490.23076923
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 outcome is 76490.23076923, with a leftover of 1e-09.