Alright, let's work through 66540736 times 61864948 step by step
66540736 × 61864948 = 61864948 × (66540736)
+ 61864948 × 6 yielding 371189688
+ 61864948 × 30 giving us 1855948440
+ 61864948 × 700 giving us 43305463600
+ 61864948 × 0000 giving us 0
+ 61864948 × 40000 resulting in 2474597920000
+ 61864948 × 500000 producing 30932474000000
+ 61864948 × 6000000 yielding 371189688000000
+ 61864948 × 60000000 resulting in 3711896880000000

= 4116539172521728
