Alright, let's work through 7734 times 3904 step by step
7734 × 3904 = 3904 × (7734)
+ 3904 × 4 what gives us 15616
+ 3904 × 30 giving us 117120
+ 3904 × 700 resulting in 2732800
+ 3904 × 7000 resulting in 27328000

= 30193536
