Alright, let's work through 9204 times 3115 step by step
9204 × 3115 = 3115 × (9204)
+ 3115 × 4 that equals 12460
+ 3115 × 00 which equals 0
+ 3115 × 200 yielding 623000
+ 3115 × 9000 giving us 28035000

= 28670460
