Obtain the 9's complement of the following eight-digit decimal number:   12349876

Sure, here are the steps to find the 9's complement of the decimal number 12349876:

Step 1: Write down the number: 12349876

Step 2: To find the 9's complement of a number, subtract each digit of the number from 9.

Step 3: Subtract each digit in 12349876 from 9:

9 - 1 = 8 9 - 2 = 7 9 - 3 = 6 9 - 4 = 5 9 - 9 = 0 9 - 8 = 1 9 - 7 = 2 9 - 6 = 3

Step 4: Write down the results from step 3 in the order of the original number. This gives you the 9's complement of the number.

So, the 9's complement of 12349876 is 87650123.