350458 ÷ 16 
The aim is to understand the frequency of 16 in 350458.

On to step 1:
16 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 16

Moving on to step 2:
16 can be fit into 35 2 times, resulting in a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 32 away from 35, we end up with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 16

Going ahead to step 3:
16 can be fit into 30 1 times, resulting in a remainder of 14.
The next digit of our result is 1. 
Result so far: 21.0
Subtracting 16 from 30 leaves us with 14.
Bring next digit (4) of the dividend behind the 14 and repeat the process: 144 / 16

On to step 4:
When dividing 144 by 16, we get 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 219.0
The remainder is 0 after subtracting 144 from 144.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 16

Moving on to step 5:
If we divide 5 by 16, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 2190.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 16

Let's proceed to step 6:
16 can be fit into 58 3 times, resulting in a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 21903.0
Subtract 48 from 58 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
100 divided by 16 is 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 21903.6
Subtract 96 from 100 to 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.

Going ahead to step 8:
If we divide 40 by 16, we get 2 and a remainder of 8.
The next digit of our result is 2. 
Result so far: 21903.62
Subtract 32 from 40 to 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 9:
16 goes into 80 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 21903.625
Deduct 80 from 80 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.

Advancing to step 10:
If we divide 0 by 16, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 21903.625
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.

Advancing to step 11:
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: 21903.625
If we subtract 0 from 0, 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.

The quotient of the division is 21903.625, and the remainder is 0.0.