Alright, let's work through 65416894 times 42401294 step by step
65416894 × 42401294 = 42401294 × (65416894)
+ 42401294 × 4 that is equal 169605176
+ 42401294 × 90 that equals 3816116460
+ 42401294 × 800 that equals 33921035200
+ 42401294 × 6000 producing 254407764000
+ 42401294 × 10000 giving us 424012940000
+ 42401294 × 400000 which equals 16960517600000
+ 42401294 × 5000000 yielding 212006470000000
+ 42401294 × 60000000 producing 2544077640000000

= 2773760955060836
