Alright, let's work through 84401385 times 45189604 step by step
84401385 × 45189604 = 45189604 × (84401385)
+ 45189604 × 5 yielding 225948020
+ 45189604 × 80 producing 3615168320
+ 45189604 × 300 yielding 13556881200
+ 45189604 × 1000 that is equal 45189604000
+ 45189604 × 00000 that results in 0
+ 45189604 × 400000 which equals 18075841600000
+ 45189604 × 4000000 resulting in 180758416000000
+ 45189604 × 80000000 resulting in 3615168320000000

= 3814065165201540
