We look at the division of 406001 by 16 
The aim is to understand the frequency of 16 in 406001.

Moving on to step 1:
16 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 16

Moving on to step 2:
40 divided by 16 is 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 32 from 40, we get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 16

Step 3:
The number 16 fits into 86 5 times, leaving a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 25.0
If we subtract 80 from 86, we get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 16

Advancing to step 4:
When dividing 60 by 16, we get 3 with a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 253.0
If we take 48 away from 60, we end up with 12.
Bring next digit (0) of the dividend behind the 12 and repeat the process: 120 / 16

Going ahead to step 5:
16 can be fit into 120 7 times, resulting in a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 2537.0
Subtract 112 from 120 to get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 16

Going ahead to step 6:
16 can be fit into 81 5 times, resulting in a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 25375.0
Subtract 80 from 81 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
16 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 25375.0
Subtracting 0 from 10 leaves us 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.

Moving on to step 8:
When dividing 100 by 16, we get 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 25375.06
Subtracting 96 from 100 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 9:
If we divide 40 by 16, we get 2 and a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 25375.062
If we take 32 away from 40, 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.

Step 10:
When dividing 80 by 16, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 25375.0625
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 11:
The number 16 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 25375.0625
Subtract 0 from 0 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 12:
When dividing 0 by 16, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 25375.0625
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.

The quotient of the division is 25375.0625, and the remainder is 0.0.