18636840 ÷ 543 
We want to divide 18636840 by 543.

Moving on to step 1:
When dividing 1 by 543, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 543

Advancing to step 2:
18 divided by 543 is 0 with a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Grab the next digit (6) from the dividend, add it to 18, then carry on: 186 / 543

Going ahead to step 3:
543 can be fit into 186 0 times, resulting in a remainder of 186.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 186 after subtracting 0 from 186.
Include the next digit (3) from the dividend after 186, then repeat: 1863 / 543

Step 4:
543 can be fit into 1863 3 times, resulting in a remainder of 234.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 1629 from 1863 to get 234.
Bring next digit (6) of the dividend behind the 234 and repeat the process: 2346 / 543

Let's proceed to step 5:
2346 divided by 543 is 4 with a remainder of 174.
The next digit of our result is 4. 
Result so far: 34.0
Subtracting 2172 from 2346 leaves us with 174.
Fetch the next digit (8) from the dividend, attach it to 174 and continue: 1748 / 543

Going ahead to step 6:
When dividing 1748 by 543, we get 3 with a remainder of 119.
The next digit of our result is 3. 
Result so far: 343.0
If we take 1629 away from 1748, we end up with 119.
Include the next digit (4) from the dividend after 119, then repeat: 1194 / 543

Going ahead to step 7:
The number 543 fits into 1194 2 times, leaving a remainder of 108.
Write down 2 as next digit of the result. 
Result so far: 3432.0
Deduct 1086 from 1194 and we're left with 108.
Fetch the next digit (0) from the dividend, attach it to 108 and continue: 1080 / 543

Advancing to step 8:
The number 543 fits into 1080 1 times, leaving a remainder of 537.
The number 1 becomes the next digit in our result. 
Result so far: 34321.0
Subtract 543 from 1080 to get 537.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5370, and continue the process.

Advancing to step 9:
The number 543 fits into 5370 9 times, leaving a remainder of 483.
Put 9 as the next digit of the answer. 
Result so far: 34321.9
The remainder is 483 after subtracting 4887 from 5370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Moving on to step 10:
If we divide 4830 by 543, we get 8 and a remainder of 486.
The next digit of our result is 8. 
Result so far: 34321.98
Deduct 4344 from 4830 and we're left with 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Let's proceed to step 11:
If we divide 4860 by 543, we get 8 and a remainder of 516.
Record the quotient 8 as the next digit in the result. 
Result so far: 34321.988
Subtracting 4344 from 4860 leaves us with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Our division results in 34321.988 with a remaining 0.0516.