Alright, let's work through 51669599 times 48445889 step by step
51669599 × 48445889 = 48445889 × (51669599)
+ 48445889 × 9 that results in 436013001
+ 48445889 × 90 that results in 4360130010
+ 48445889 × 500 what gives us 24222944500
+ 48445889 × 9000 which equals 436013001000
+ 48445889 × 60000 that results in 2906753340000
+ 48445889 × 600000 resulting in 29067533400000
+ 48445889 × 1000000 giving us 48445889000000
+ 48445889 × 50000000 which equals 2422294450000000

= 2503179657828511
