We're dividing 561583 by 16 
The aim is to understand the frequency of 16 in 561583.

Step 1:
16 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 16

On to step 2:
When dividing 56 by 16, we get 3 with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 48 from 56 to get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 16

On to step 3:
81 divided by 16 is 5 with a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
Subtract 80 from 81 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 16

On to step 4:
15 divided by 16 is 0 with a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 350.0
Subtracting 0 from 15 leaves us with 15.
Append the next digit (8) from the dividend to 15 and continue with: 158 / 16

Going ahead to step 5:
When dividing 158 by 16, we get 9 with a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 3509.0
The remainder is 14 after subtracting 144 from 158.
Append the next digit (3) from the dividend to 14 and continue with: 143 / 16

On to step 6:
143 divided by 16 is 8 with a remainder of 15.
Use 8 as the next digit of our solution. 
Result so far: 35098.0
Subtracting 128 from 143 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
When dividing 150 by 16, we get 9 with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 35098.9
Subtract 144 from 150 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.

Going ahead to step 8:
16 can be fit into 60 3 times, resulting in a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 35098.93
Subtract 48 from 60 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
If we divide 120 by 16, we get 7 and a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 35098.937
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.

Going ahead to step 10:
16 goes into 80 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 35098.9375
If we subtract 80 from 80, 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.

Step 11:
The number 16 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 35098.9375
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.

Going ahead to step 12:
0 divided by 16 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 35098.9375
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.

Our division results in 35098.9375 with a remaining 0.0.