We look at the division of 89609623 by 543 
Let's see how many times 543 fits into 89609623.

Step 1:
8 divided by 543 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 543

Let's proceed to step 2:
The number 543 fits into 89 0 times, leaving a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 89, we end up with 89.
Include the next digit (6) from the dividend after 89, then repeat: 896 / 543

Let's proceed to step 3:
543 can be fit into 896 1 times, resulting in a remainder of 353.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 543 from 896 to get 353.
Take the next digit (0) from the dividend and append it to 353, then repeat: 3530 / 543

Advancing to step 4:
3530 divided by 543 is 6 with a remainder of 272.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we take 3258 away from 3530, we end up with 272.
Append the next digit (9) from the dividend to 272 and continue with: 2729 / 543

Step 5:
The number 543 fits into 2729 5 times, leaving a remainder of 14.
The next digit of our result is 5. 
Result so far: 165.0
If we subtract 2715 from 2729, we get 14.
Take the next digit (6) from the dividend and append it to 14, then repeat: 146 / 543

On to step 6:
If we divide 146 by 543, we get 0 and a remainder of 146.
The number 0 becomes the next digit in our result. 
Result so far: 1650.0
Subtract 0 from 146 to get 146.
Append the next digit (2) from the dividend to 146 and continue with: 1462 / 543

On to step 7:
When dividing 1462 by 543, we get 2 with a remainder of 376.
The next digit of our result is 2. 
Result so far: 16502.0
Deduct 1086 from 1462 and we're left with 376.
Include the next digit (3) from the dividend after 376, then repeat: 3763 / 543

Advancing to step 8:
When dividing 3763 by 543, we get 6 with a remainder of 505.
The next digit of our result is 6. 
Result so far: 165026.0
The remainder is 505 after subtracting 3258 from 3763.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

On to step 9:
The number 543 fits into 5050 9 times, leaving a remainder of 163.
Use 9 as the next digit of our solution. 
Result so far: 165026.9
Subtracting 4887 from 5050 leaves us with 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Step 10:
1630 divided by 543 is 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 165026.93
If we take 1629 away from 1630, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 11:
10 divided by 543 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 165026.93
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 12:
543 can be fit into 100 0 times, resulting in a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 165026.93
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final result is 165026.93 with a remainder of 0.001.