Alright, let's work through 9378 times 905 step by step
9378 × 905 = 905 × (9378)
+ 905 × 8 producing 7240
+ 905 × 70 that equals 63350
+ 905 × 300 resulting in 271500
+ 905 × 9000 that is equal 8145000

= 8487090
