Alright, let's work through 18155870 times 80741480 step by step
18155870 × 80741480 = 80741480 × (18155870)
+ 80741480 × 0 producing 0
+ 80741480 × 70 what gives us 5651903600
+ 80741480 × 800 that results in 64593184000
+ 80741480 × 5000 that equals 403707400000
+ 80741480 × 50000 producing 4037074000000
+ 80741480 × 100000 producing 8074148000000
+ 80741480 × 8000000 what gives us 645931840000000
+ 80741480 × 10000000 that equals 807414800000000

= 1465931814487600
