Alright, let's work through 73002081 times 18142570 step by step
73002081 × 18142570 = 18142570 × (73002081)
+ 18142570 × 1 producing 18142570
+ 18142570 × 80 that results in 1451405600
+ 18142570 × 000 resulting in 0
+ 18142570 × 2000 that results in 36285140000
+ 18142570 × 00000 giving us 0
+ 18142570 × 000000 that equals 0
+ 18142570 × 3000000 what gives us 54427710000000
+ 18142570 × 70000000 that is equal 1269979900000000

= 1324445364688170
