Alright, let's work through 80391387 times 27151444 step by step
80391387 × 27151444 = 27151444 × (80391387)
+ 27151444 × 7 giving us 190060108
+ 27151444 × 80 producing 2172115520
+ 27151444 × 300 that results in 8145433200
+ 27151444 × 1000 that equals 27151444000
+ 27151444 × 90000 giving us 2443629960000
+ 27151444 × 300000 that equals 8145433200000
+ 27151444 × 0000000 what gives us 0
+ 27151444 × 80000000 that equals 2172115520000000

= 2182742242212828
