18491596 ÷ 543 
The aim is to understand the frequency of 543 in 18491596.

Moving on to step 1:
543 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 543

Let's proceed to step 2:
The number 543 fits into 18 0 times, leaving a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Take the next digit (4) from the dividend and append it to 18, then repeat: 184 / 543

On to step 3:
The number 543 fits into 184 0 times, leaving a remainder of 184.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 184, we end up with 184.
Bring next digit (9) of the dividend behind the 184 and repeat the process: 1849 / 543

Step 4:
543 can be fit into 1849 3 times, resulting in a remainder of 220.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 220 after subtracting 1629 from 1849.
Take the next digit (1) from the dividend and append it to 220, then repeat: 2201 / 543

Moving on to step 5:
When dividing 2201 by 543, we get 4 with a remainder of 29.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
If we take 2172 away from 2201, we end up with 29.
Append the next digit (5) from the dividend to 29 and continue with: 295 / 543

Moving on to step 6:
543 can be fit into 295 0 times, resulting in a remainder of 295.
Use 0 as the next digit of our solution. 
Result so far: 340.0
If we take 0 away from 295, we end up with 295.
Append the next digit (9) from the dividend to 295 and continue with: 2959 / 543

Moving on to step 7:
543 goes into 2959 5 times with a remainder of 244.
Use 5 as the next digit of our solution. 
Result so far: 3405.0
Deduct 2715 from 2959 and we're left with 244.
Include the next digit (6) from the dividend after 244, then repeat: 2446 / 543

Advancing to step 8:
If we divide 2446 by 543, we get 4 and a remainder of 274.
The next digit of our result is 4. 
Result so far: 34054.0
Subtracting 2172 from 2446 leaves us with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Step 9:
543 goes into 2740 5 times with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 34054.5
If we subtract 2715 from 2740, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 10:
When dividing 250 by 543, we get 0 with a remainder of 250.
Record the quotient 0 as the next digit in the result. 
Result so far: 34054.5
If we subtract 0 from 250, we get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Step 11:
2500 divided by 543 is 4 with a remainder of 328.
Use 4 as the next digit of our solution. 
Result so far: 34054.504
The remainder is 328 after subtracting 2172 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Moving on to step 12:
543 can be fit into 3280 6 times, resulting in a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 34054.5046
Subtract 3258 from 3280 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 13:
If we divide 220 by 543, we get 0 and a remainder of 220.
Record the quotient 0 as the next digit in the result. 
Result so far: 34054.5046
If we take 0 away from 220, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 14:
If we divide 2200 by 543, we get 4 and a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 34054.504604
If we take 2172 away from 2200, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 15:
543 goes into 280 0 times with a remainder of 280.
Put 0 as the next digit of the answer. 
Result so far: 34054.504604
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 16:
543 can be fit into 2800 5 times, resulting in a remainder of 85.
Put 5 as the next digit of the answer. 
Result so far: 34054.50460405
Subtracting 2715 from 2800 leaves us with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Our division results in 34054.50460405 with a remaining 8.5e-08.