Alright, let's work through 8434 times 9315 step by step
8434 × 9315 = 9315 × (8434)
+ 9315 × 4 giving us 37260
+ 9315 × 30 yielding 279450
+ 9315 × 400 that equals 3726000
+ 9315 × 8000 giving us 74520000

= 78562710
