Alright, let's work through 6432 times 9615 step by step
6432 × 9615 = 9615 × (6432)
+ 9615 × 2 producing 19230
+ 9615 × 30 that equals 288450
+ 9615 × 400 resulting in 3846000
+ 9615 × 6000 that equals 57690000

= 61843680
