Alright, let's work through 2788 times 7552 step by step
2788 × 7552 = 7552 × (2788)
+ 7552 × 8 giving us 60416
+ 7552 × 80 producing 604160
+ 7552 × 700 what gives us 5286400
+ 7552 × 2000 resulting in 15104000

= 21054976
