Alright, let's work through 1378 times 8624 step by step
1378 × 8624 = 8624 × (1378)
+ 8624 × 8 producing 68992
+ 8624 × 70 that equals 603680
+ 8624 × 300 that results in 2587200
+ 8624 × 1000 yielding 8624000

= 11883872
