Let's divide 742621 by 16
The aim is to understand the frequency of 16 in 742621.

On to step 1:
If we divide 7 by 16, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 16

Going ahead to step 2:
16 goes into 74 4 times with a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 64 from 74 and we're left with 10.
Fetch the next digit (2) from the dividend, attach it to 10 and continue: 102 / 16

On to step 3:
The number 16 fits into 102 6 times, leaving a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 46.0
The remainder is 6 after subtracting 96 from 102.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 16

Advancing to step 4:
The number 16 fits into 66 4 times, leaving a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 464.0
Subtracting 64 from 66 leaves us with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 16

Let's proceed to step 5:
16 can be fit into 22 1 times, resulting in a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 4641.0
Subtract 16 from 22 to get 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 16

On to step 6:
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: 46413.0
Subtract 48 from 61 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 7:
When dividing 130 by 16, we get 8 with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 46413.8
If we take 128 away from 130, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 8:
20 divided by 16 is 1 with a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 46413.81
Subtract 16 from 20 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 9:
16 can be fit into 40 2 times, resulting in a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 46413.812
If we take 32 away from 40, we end up 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 10:
If we divide 80 by 16, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 46413.8125
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.

Advancing to step 11:
When dividing 0 by 16, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 46413.8125
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.

Advancing to step 12:
The number 16 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 46413.8125
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 46413.8125 and a remainder of 0.0.