642212 divided by 16 
The aim is to understand the frequency of 16 in 642212.

Going ahead to step 1:
The number 16 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 16

Let's proceed to step 2:
When dividing 64 by 16, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 64 from 64, we get 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 16

Let's proceed to step 3:
16 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 40.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 16

Step 4:
16 can be fit into 22 1 times, resulting in a remainder of 6.
The next digit of our result is 1. 
Result so far: 401.0
If we take 16 away from 22, we end up with 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 16

Step 5:
16 can be fit into 61 3 times, resulting in a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 4013.0
If we subtract 48 from 61, we get 13.
Include the next digit (2) from the dividend after 13, then repeat: 132 / 16

On to step 6:
If we divide 132 by 16, we get 8 and a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 40138.0
If we subtract 128 from 132, we get 4.
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 7:
40 divided by 16 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 40138.2
Deduct 32 from 40 and we're left with 8.
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 8:
16 goes into 80 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 40138.25
The remainder is 0 after subtracting 80 from 80.
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 9:
When dividing 0 by 16, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 40138.25
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 10:
The number 16 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 40138.25
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.

The final result is 40138.25 with a remainder of 0.0.