Alright, let's work through 18083378 times 71371006 step by step
18083378 × 71371006 = 71371006 × (18083378)
+ 71371006 × 8 what gives us 570968048
+ 71371006 × 70 that is equal 4995970420
+ 71371006 × 300 producing 21411301800
+ 71371006 × 3000 that equals 214113018000
+ 71371006 × 80000 giving us 5709680480000
+ 71371006 × 000000 which equals 0
+ 71371006 × 8000000 yielding 570968048000000
+ 71371006 × 10000000 that is equal 713710060000000

= 1290628879738268
