We look at the division of 812630 by 16 
The aim is to understand the frequency of 16 in 812630.

On to step 1:
The number 16 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 16

Step 2:
When dividing 81 by 16, we get 5 with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 1 after subtracting 80 from 81.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 16

Step 3:
16 goes into 12 0 times with a remainder of 12.
The next digit of our result is 0. 
Result so far: 50.0
If we subtract 0 from 12, we get 12.
Bring next digit (6) of the dividend behind the 12 and repeat the process: 126 / 16

Advancing to step 4:
16 can be fit into 126 7 times, resulting in a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 507.0
If we subtract 112 from 126, we get 14.
Grab the next digit (3) from the dividend, add it to 14, then carry on: 143 / 16

Going ahead to step 5:
16 can be fit into 143 8 times, resulting in a remainder of 15.
Record the quotient 8 as the next digit in the result. 
Result so far: 5078.0
Subtract 128 from 143 to get 15.
Take the next digit (0) from the dividend and append it to 15, then repeat: 150 / 16

Going ahead to step 6:
If we divide 150 by 16, we get 9 and a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 50789.0
The remainder is 6 after subtracting 144 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
When dividing 60 by 16, we get 3 with a remainder of 12.
The next digit of our result is 3. 
Result so far: 50789.3
Deduct 48 from 60 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
16 goes into 120 7 times with a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 50789.37
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.

Moving on to step 9:
When dividing 80 by 16, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 50789.375
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.

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: 50789.375
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.

Going ahead to step 11:
When dividing 0 by 16, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 50789.375
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.

After the division, we end up with 50789.375 and a remainder of 0.0.