We're dividing 45475490 by 16 
The aim is to understand the frequency of 16 in 45475490.

Step 1:
When dividing 4 by 16, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 16

Going ahead to step 2:
16 goes into 45 2 times with a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 32 from 45 to get 13.
Grab the next digit (4) from the dividend, add it to 13, then carry on: 134 / 16

Let's proceed to step 3:
134 divided by 16 is 8 with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 28.0
If we subtract 128 from 134, we get 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 16

Going ahead to step 4:
If we divide 67 by 16, we get 4 and a remainder of 3.
The number 4 becomes the next digit in our result. 
Result so far: 284.0
Subtract 64 from 67 to get 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 16

Advancing to step 5:
16 goes into 35 2 times with a remainder of 3.
The next digit of our result is 2. 
Result so far: 2842.0
Deduct 32 from 35 and we're left with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 16

On to step 6:
The number 16 fits into 34 2 times, leaving a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 28422.0
Subtract 32 from 34 to get 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 16

Let's proceed to step 7:
The number 16 fits into 29 1 times, leaving a remainder of 13.
The next digit of our result is 1. 
Result so far: 284221.0
Subtract 16 from 29 to get 13.
Take the next digit (0) from the dividend and append it to 13, then repeat: 130 / 16

Step 8:
The number 16 fits into 130 8 times, leaving a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 2842218.0
If we take 128 away from 130, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
If we divide 20 by 16, we get 1 and a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 2842218.1
The remainder is 4 after subtracting 16 from 20.
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 10:
If we divide 40 by 16, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 2842218.12
If we subtract 32 from 40, 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.

Moving on to step 11:
If we divide 80 by 16, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 2842218.125
Subtracting 80 from 80 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.

Going ahead to step 12:
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: 2842218.125
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 13:
0 divided by 16 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2842218.125
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.

Our division results in 2842218.125 with a remaining 0.0.