Alright, let's work through 42468884 times 81481019 step by step
42468884 × 81481019 = 81481019 × (42468884)
+ 81481019 × 4 yielding 325924076
+ 81481019 × 80 resulting in 6518481520
+ 81481019 × 800 yielding 65184815200
+ 81481019 × 8000 yielding 651848152000
+ 81481019 × 60000 that is equal 4888861140000
+ 81481019 × 400000 producing 32592407600000
+ 81481019 × 2000000 producing 162962038000000
+ 81481019 × 40000000 producing 3259240760000000

= 3460407944112796
