Alright, let's work through 73203380 times 72736773 step by step
73203380 × 72736773 = 72736773 × (73203380)
+ 72736773 × 0 that is equal 0
+ 72736773 × 80 which equals 5818941840
+ 72736773 × 300 which equals 21821031900
+ 72736773 × 3000 that results in 218210319000
+ 72736773 × 00000 that is equal 0
+ 72736773 × 200000 giving us 14547354600000
+ 72736773 × 3000000 that equals 218210319000000
+ 72736773 × 70000000 that equals 5091574110000000

= 5324577633892740
