We're dividing 21214 by 16 
The aim is to understand the frequency of 16 in 21214.

Advancing to step 1:
When dividing 2 by 16, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 16

Advancing to step 2:
21 divided by 16 is 1 with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 16 from 21 to get 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 16

Advancing to step 3:
52 divided by 16 is 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 13.0
If we take 48 away from 52, we end up with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 16

Moving on to step 4:
16 goes into 41 2 times with a remainder of 9.
Record the quotient 2 as the next digit in the result. 
Result so far: 132.0
If we subtract 32 from 41, we get 9.
Fetch the next digit (4) from the dividend, attach it to 9 and continue: 94 / 16

Going ahead to step 5:
If we divide 94 by 16, we get 5 and a remainder of 14.
Write down 5 as next digit of the result. 
Result so far: 1325.0
Subtract 80 from 94 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 6:
16 can be fit into 140 8 times, resulting in a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 1325.8
If we subtract 128 from 140, we 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.

Moving on to step 7:
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: 1325.87
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 8:
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: 1325.875
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:
The number 16 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1325.875
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.

Let's proceed to step 10:
If we divide 0 by 16, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 1325.875
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.

The quotient of the division is 1325.875, and the remainder is 0.0.