use a calculator or long hand multiplication
99,990 multiplied by 321 is 32,096,790
321 multiplied by 4 is 1,284.
3 multiplied by 107 is 321.
321 multiplied by 84 is 26,964.
107 multiplied by 14 is 1,498.
18 multiplied by 14 is 252
14 multiplied by 91 is 1,274.
340904.
It is: 111,111,1112 = 12,345,678,987,456,321
111,111,111 x 111,111,111
Any number multiplied by 1 is the number itself: so the answer is 14.
14 over 50 multiplied by 100 is 28