We're dividing 731503 by 16 
The aim is to understand the frequency of 16 in 731503.

Going ahead to step 1:
16 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 16

Advancing to step 2:
When dividing 73 by 16, we get 4 with a remainder of 9.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 9 after subtracting 64 from 73.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 16

Going ahead to step 3:
16 can be fit into 91 5 times, resulting in a remainder of 11.
Write down 5 as next digit of the result. 
Result so far: 45.0
The remainder is 11 after subtracting 80 from 91.
Take the next digit (5) from the dividend and append it to 11, then repeat: 115 / 16

On to step 4:
If we divide 115 by 16, we get 7 and a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 457.0
If we subtract 112 from 115, we get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 16

Moving on to step 5:
When dividing 30 by 16, we get 1 with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 4571.0
Subtracting 16 from 30 leaves us with 14.
Grab the next digit (3) from the dividend, add it to 14, then carry on: 143 / 16

On to step 6:
If we divide 143 by 16, we get 8 and a remainder of 15.
The next digit of our result is 8. 
Result so far: 45718.0
Deduct 128 from 143 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
If we divide 150 by 16, we get 9 and a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 45718.9
If we take 144 away from 150, we end up 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.

Advancing to step 8:
If we divide 60 by 16, we get 3 and a remainder of 12.
The next digit of our result is 3. 
Result so far: 45718.93
If we take 48 away from 60, we end up 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.

Step 9:
When dividing 120 by 16, we get 7 with a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 45718.937
If we take 112 away from 120, 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.

Step 10:
If we divide 80 by 16, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 45718.9375
Subtract 80 from 80 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.

On to step 11:
16 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 45718.9375
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.

Moving on to step 12:
16 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 45718.9375
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.

The final outcome is 45718.9375, with a leftover of 0.0.