Let's divide 65881012 by 16
The aim is to understand the frequency of 16 in 65881012.

Going ahead to step 1:
The number 16 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 16

Let's proceed to step 2:
16 can be fit into 65 4 times, resulting in a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 64 from 65, we get 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 16

Going ahead to step 3:
The number 16 fits into 18 1 times, leaving a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 41.0
Deduct 16 from 18 and we're left with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 16

Going ahead to step 4:
28 divided by 16 is 1 with a remainder of 12.
The next digit of our result is 1. 
Result so far: 411.0
If we subtract 16 from 28, we get 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 16

Going ahead to step 5:
When dividing 121 by 16, we get 7 with a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 4117.0
If we take 112 away from 121, we end up with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 16

Let's proceed to step 6:
When dividing 90 by 16, we get 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 41175.0
If we subtract 80 from 90, we get 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 16

Step 7:
When dividing 101 by 16, we get 6 with a remainder of 5.
The next digit of our result is 6. 
Result so far: 411756.0
The remainder is 5 after subtracting 96 from 101.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 16

Moving on to step 8:
When dividing 52 by 16, we get 3 with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 4117563.0
Subtracting 48 from 52 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
The number 16 fits into 40 2 times, leaving a remainder of 8.
The next digit of our result is 2. 
Result so far: 4117563.2
Subtracting 32 from 40 leaves us 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.

Going ahead to step 10:
If we divide 80 by 16, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 4117563.25
If we subtract 80 from 80, 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.

Let's proceed to step 11:
If we divide 0 by 16, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4117563.25
Subtract 0 from 0 to 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.

Moving on to step 12:
0 divided by 16 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4117563.25
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 4117563.25 with a remainder of 0.0.