Alright, let's work through 62078545 times 40078023 step by step
62078545 × 40078023 = 40078023 × (62078545)
+ 40078023 × 5 resulting in 200390115
+ 40078023 × 40 that results in 1603120920
+ 40078023 × 500 yielding 20039011500
+ 40078023 × 8000 producing 320624184000
+ 40078023 × 70000 yielding 2805461610000
+ 40078023 × 000000 which equals 0
+ 40078023 × 2000000 which equals 80156046000000
+ 40078023 × 60000000 producing 2404681380000000

= 2487985354316535
