Alright, let's work through 4378 times 75 step by step
4378 × 75 = 75 × (4378)
+ 75 × 8 that results in 600
+ 75 × 70 what gives us 5250
+ 75 × 300 resulting in 22500
+ 75 × 4000 that equals 300000

= 328350
