Alright, let's work through 7878 times 153 step by step
7878 × 153 = 153 × (7878)
+ 153 × 8 yielding 1224
+ 153 × 70 resulting in 10710
+ 153 × 800 resulting in 122400
+ 153 × 7000 resulting in 1071000

= 1205334
