Alright, let's work through 21168942 times 81682070 step by step
21168942 × 81682070 = 81682070 × (21168942)
+ 81682070 × 2 that is equal 163364140
+ 81682070 × 40 that is equal 3267282800
+ 81682070 × 900 that equals 73513863000
+ 81682070 × 8000 what gives us 653456560000
+ 81682070 × 60000 resulting in 4900924200000
+ 81682070 × 100000 that equals 8168207000000
+ 81682070 × 1000000 producing 81682070000000
+ 81682070 × 20000000 that is equal 1633641400000000

= 1729123002269940
