Alright, let's work through 8437 times 7855 step by step
8437 × 7855 = 7855 × (8437)
+ 7855 × 7 which equals 54985
+ 7855 × 30 what gives us 235650
+ 7855 × 400 yielding 3142000
+ 7855 × 8000 resulting in 62840000

= 66272635
