Let's calculate 80374323 x 77012811
80374323 × 77012811 = 77012811 × (80374323)
+ 77012811 × 3 which equals 231038433
+ 77012811 × 20 producing 1540256220
+ 77012811 × 300 producing 23103843300
+ 77012811 × 4000 that is equal 308051244000
+ 77012811 × 70000 resulting in 5390896770000
+ 77012811 × 300000 what gives us 23103843300000
+ 77012811 × 0000000 that results in 0
+ 77012811 × 80000000 that results in 6161024880000000

= 6189852546451953
