Let's calculate 80472366 x 66508737
80472366 × 66508737 = 66508737 × (80472366)
+ 66508737 × 6 what gives us 399052422
+ 66508737 × 60 giving us 3990524220
+ 66508737 × 300 that results in 19952621100
+ 66508737 × 2000 that results in 133017474000
+ 66508737 × 70000 giving us 4655611590000
+ 66508737 × 400000 that equals 26603494800000
+ 66508737 × 0000000 which equals 0
+ 66508737 × 80000000 resulting in 5320698960000000

= 5352115426061742
