We look at the division of 103599 by 54 
The aim is to understand the frequency of 54 in 103599.

Let's proceed to step 1:
The number 54 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 54

Moving on to step 2:
The number 54 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 10 to get 10.
Fetch the next digit (3) from the dividend, attach it to 10 and continue: 103 / 54

Step 3:
The number 54 fits into 103 1 times, leaving a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 54 from 103 to get 49.
Bring next digit (5) of the dividend behind the 49 and repeat the process: 495 / 54

Advancing to step 4:
54 can be fit into 495 9 times, resulting in a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we take 486 away from 495, we end up with 9.
Fetch the next digit (9) from the dividend, attach it to 9 and continue: 99 / 54

Step 5:
When dividing 99 by 54, we get 1 with a remainder of 45.
Record the quotient 1 as the next digit in the result. 
Result so far: 191.0
The remainder is 45 after subtracting 54 from 99.
Include the next digit (9) from the dividend after 45, then repeat: 459 / 54

Advancing to step 6:
If we divide 459 by 54, we get 8 and a remainder of 27.
Use 8 as the next digit of our solution. 
Result so far: 1918.0
The remainder is 27 after subtracting 432 from 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 7:
54 can be fit into 270 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 1918.5
Subtract 270 from 270 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 8:
If we divide 0 by 54, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 1918.5
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.

Let's proceed to step 9:
When dividing 0 by 54, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1918.5
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.

Our division results in 1918.5 with a remaining 0.0.