Alright, let's work through 7778 times 2388 step by step
7778 × 2388 = 2388 × (7778)
+ 2388 × 8 that is equal 19104
+ 2388 × 70 that equals 167160
+ 2388 × 700 resulting in 1671600
+ 2388 × 7000 yielding 16716000

= 18573864
