We're dividing 813594 by 16 
The aim is to understand the frequency of 16 in 813594.

Moving on to step 1:
8 divided by 16 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 16

Let's proceed to step 2:
When dividing 81 by 16, we get 5 with a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 80 from 81 to get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 16

On to step 3:
13 divided by 16 is 0 with a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 50.0
The remainder is 13 after subtracting 0 from 13.
Fetch the next digit (5) from the dividend, attach it to 13 and continue: 135 / 16

On to step 4:
16 can be fit into 135 8 times, resulting in a remainder of 7.
The next digit of our result is 8. 
Result so far: 508.0
Deduct 128 from 135 and we're left with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 16

Step 5:
When dividing 79 by 16, we get 4 with a remainder of 15.
Write down 4 as next digit of the result. 
Result so far: 5084.0
Subtracting 64 from 79 leaves us with 15.
Append the next digit (4) from the dividend to 15 and continue with: 154 / 16

Moving on to step 6:
154 divided by 16 is 9 with a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 50849.0
Subtract 144 from 154 to get 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 7:
16 can be fit into 100 6 times, resulting in a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 50849.6
Subtract 96 from 100 to 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.

Let's proceed to step 8:
16 can be fit into 40 2 times, resulting in a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 50849.62
Deduct 32 from 40 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.

On to step 9:
80 divided by 16 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 50849.625
Deduct 80 from 80 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
When dividing 0 by 16, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 50849.625
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
16 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 50849.625
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 50849.625 and a remainder of 0.0.