556166 divided by 16 
The aim is to understand the frequency of 16 in 556166.

Moving on to step 1:
The number 16 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 16

Moving on to step 2:
16 goes into 55 3 times with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 48 from 55 and we're left with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 16

Advancing to step 3:
76 divided by 16 is 4 with a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 34.0
Subtracting 64 from 76 leaves us with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 16

Let's proceed to step 4:
If we divide 121 by 16, we get 7 and a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 347.0
Subtract 112 from 121 to get 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 16

On to step 5:
16 can be fit into 96 6 times, resulting in a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 3476.0
Deduct 96 from 96 and we're left with 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 16

Moving on to step 6:
16 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 34760.0
Deduct 0 from 6 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 7:
60 divided by 16 is 3 with a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 34760.3
If we take 48 away from 60, we end up 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.

On to step 8:
16 can be fit into 120 7 times, resulting in a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 34760.37
If we subtract 112 from 120, we get 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.
The next digit of our result is 5. 
Result so far: 34760.375
If we take 80 away from 80, 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.

Moving on to step 10:
The number 16 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 34760.375
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.

Let's proceed 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: 34760.375
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.

The final outcome is 34760.375, with a leftover of 0.0.