We're dividing 668695 by 16 
The aim is to understand the frequency of 16 in 668695.

On to step 1:
When dividing 6 by 16, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 16

Step 2:
If we divide 66 by 16, we get 4 and a remainder of 2.
The next digit of our result is 4. 
Result so far: 4.0
If we take 64 away from 66, we end up with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 16

Advancing to step 3:
If we divide 28 by 16, we get 1 and a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 41.0
Deduct 16 from 28 and we're left with 12.
Bring next digit (6) of the dividend behind the 12 and repeat the process: 126 / 16

Going ahead to step 4:
The number 16 fits into 126 7 times, leaving a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 417.0
Subtracting 112 from 126 leaves us with 14.
Take the next digit (9) from the dividend and append it to 14, then repeat: 149 / 16

On to step 5:
16 can be fit into 149 9 times, resulting in a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 4179.0
If we subtract 144 from 149, we get 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 16

On to step 6:
16 can be fit into 55 3 times, resulting in a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 41793.0
Subtract 48 from 55 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
The number 16 fits into 70 4 times, leaving a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 41793.4
Subtract 64 from 70 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.

Let's proceed to step 8:
The number 16 fits into 60 3 times, leaving a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 41793.43
Deduct 48 from 60 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 9:
If we divide 120 by 16, we get 7 and a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 41793.437
The remainder is 8 after subtracting 112 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
The number 16 fits into 80 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 41793.4375
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.

Step 11:
0 divided by 16 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 41793.4375
The remainder is 0 after subtracting 0 from 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 12:
When dividing 0 by 16, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 41793.4375
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.

The final result is 41793.4375 with a remainder of 0.0.