Alright, let's work through 4378 times 5397 step by step
4378 × 5397 = 5397 × (4378)
+ 5397 × 8 that equals 43176
+ 5397 × 70 giving us 377790
+ 5397 × 300 that results in 1619100
+ 5397 × 4000 resulting in 21588000

= 23628066
