We look at the division of 172604 by 16 
The aim is to understand the frequency of 16 in 172604.

Going ahead to step 1:
If we divide 1 by 16, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 16

Going ahead to step 2:
16 goes into 17 1 times with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 16 from 17 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 16

Moving on to step 3:
If we divide 12 by 16, we get 0 and a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Deduct 0 from 12 and we're left with 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 16

On to step 4:
16 goes into 126 7 times with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 107.0
Subtracting 112 from 126 leaves us with 14.
Bring next digit (0) of the dividend behind the 14 and repeat the process: 140 / 16

Step 5:
If we divide 140 by 16, we get 8 and a remainder of 12.
The next digit of our result is 8. 
Result so far: 1078.0
If we subtract 128 from 140, we get 12.
Fetch the next digit (4) from the dividend, attach it to 12 and continue: 124 / 16

Advancing to step 6:
16 goes into 124 7 times with a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 10787.0
Subtracting 112 from 124 leaves us 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.

Moving on to step 7:
When dividing 120 by 16, we get 7 with a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 10787.7
If we take 112 away from 120, 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.

Moving on to step 8:
16 goes into 80 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 10787.75
Subtract 80 from 80 to 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.

Let's proceed to step 9:
16 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 10787.75
Deduct 0 from 0 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.

On to step 10:
0 divided by 16 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 10787.75
Subtracting 0 from 0 leaves us 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 10787.75 and a remainder of 0.0.