Alright, let's work through 41990664 times 18639520 step by step
41990664 × 18639520 = 18639520 × (41990664)
+ 18639520 × 4 giving us 74558080
+ 18639520 × 60 producing 1118371200
+ 18639520 × 600 what gives us 11183712000
+ 18639520 × 0000 what gives us 0
+ 18639520 × 90000 that results in 1677556800000
+ 18639520 × 900000 yielding 16775568000000
+ 18639520 × 1000000 yielding 18639520000000
+ 18639520 × 40000000 resulting in 745580800000000

= 782685821441280
