Alright, let's work through 42903384 times 72773883 step by step
42903384 × 72773883 = 72773883 × (42903384)
+ 72773883 × 4 producing 291095532
+ 72773883 × 80 producing 5821910640
+ 72773883 × 300 which equals 21832164900
+ 72773883 × 3000 that results in 218321649000
+ 72773883 × 00000 resulting in 0
+ 72773883 × 900000 producing 65496494700000
+ 72773883 × 2000000 producing 145547766000000
+ 72773883 × 40000000 that equals 2910955320000000

= 3122245847520072
