Identify 30 tasks to preform in the system planning phase. Your list should include major tasks that would apply to most any information technology project.

The first division should reduce the hundreds digit to the units digit by dividing by 100.  Ignoring remainder means ignoring the previous units and tens digits.
The second division, where we keep the remainder is to extract the units digit by ignoring the quotient.  So we divide by 10.  The discarded digits are the tens and higher digits.