441921 ÷ 16 
The aim is to understand the frequency of 16 in 441921.

Step 1:
16 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 16

Going ahead to step 2:
When dividing 44 by 16, we get 2 with a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 32 from 44, we get 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 16

Advancing to step 3:
The number 16 fits into 121 7 times, leaving a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Subtracting 112 from 121 leaves us with 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 16

Going ahead to step 4:
The number 16 fits into 99 6 times, leaving a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 276.0
Subtracting 96 from 99 leaves us with 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 16

Let's proceed to step 5:
The number 16 fits into 32 2 times, leaving a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 2762.0
If we subtract 32 from 32, we get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 16

Let's proceed to step 6:
1 divided by 16 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 27620.0
Subtracting 0 from 1 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
16 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 27620.0
Deduct 0 from 10 and we're left 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:
The number 16 fits into 100 6 times, leaving a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 27620.06
Deduct 96 from 100 and we're left 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.

Let's proceed 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: 27620.062
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.

On to step 10:
The number 16 fits into 80 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 27620.0625
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.

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: 27620.0625
If we take 0 away from 0, 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.

On to step 12:
16 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 27620.0625
If we take 0 away from 0, 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.

After the division, we end up with 27620.0625 and a remainder of 0.0.