Alright, let's work through 78341729 times 45993506 step by step
78341729 × 45993506 = 45993506 × (78341729)
+ 45993506 × 9 what gives us 413941554
+ 45993506 × 20 that results in 919870120
+ 45993506 × 700 producing 32195454200
+ 45993506 × 1000 resulting in 45993506000
+ 45993506 × 40000 that equals 1839740240000
+ 45993506 × 300000 that is equal 13798051800000
+ 45993506 × 8000000 producing 367948048000000
+ 45993506 × 70000000 which equals 3219545420000000

= 3603210782811874
