75009591 divided by 16 
The aim is to understand the frequency of 16 in 75009591.

On to step 1:
16 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 16

Advancing to step 2:
The number 16 fits into 75 4 times, leaving a remainder of 11.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 64 from 75 to get 11.
Grab the next digit (0) from the dividend, add it to 11, then carry on: 110 / 16

Let's proceed to step 3:
16 can be fit into 110 6 times, resulting in a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 46.0
Subtract 96 from 110 to get 14.
Bring next digit (0) of the dividend behind the 14 and repeat the process: 140 / 16

Moving on to step 4:
16 goes into 140 8 times with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 468.0
The remainder is 12 after subtracting 128 from 140.
Append the next digit (9) from the dividend to 12 and continue with: 129 / 16

Step 5:
129 divided by 16 is 8 with a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 4688.0
If we take 128 away from 129, we end up with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 16

Going ahead to step 6:
The number 16 fits into 15 0 times, leaving a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 46880.0
Subtracting 0 from 15 leaves us with 15.
Append the next digit (9) from the dividend to 15 and continue with: 159 / 16

On to step 7:
When dividing 159 by 16, we get 9 with a remainder of 15.
The next digit of our result is 9. 
Result so far: 468809.0
If we take 144 away from 159, we end up with 15.
Bring next digit (1) of the dividend behind the 15 and repeat the process: 151 / 16

Moving on to step 8:
151 divided by 16 is 9 with a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 4688099.0
Subtract 144 from 151 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 9:
16 can be fit into 70 4 times, resulting in a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 4688099.4
Subtracting 64 from 70 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
16 goes into 60 3 times with a remainder of 12.
Use 3 as the next digit of our solution. 
Result so far: 4688099.43
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 11:
If we divide 120 by 16, we get 7 and a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 4688099.437
Subtract 112 from 120 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.

Advancing to step 12:
80 divided by 16 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 4688099.4375
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 13:
0 divided by 16 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4688099.4375
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.

Advancing to step 14:
0 divided by 16 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4688099.4375
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.

In conclusion, the division gives 4688099.4375 with a balance of 0.0.