Alright, let's work through 87973918 times 64260848 step by step
87973918 × 64260848 = 64260848 × (87973918)
+ 64260848 × 8 producing 514086784
+ 64260848 × 10 resulting in 642608480
+ 64260848 × 900 that equals 57834763200
+ 64260848 × 3000 that results in 192782544000
+ 64260848 × 70000 that equals 4498259360000
+ 64260848 × 900000 producing 57834763200000
+ 64260848 × 7000000 what gives us 449825936000000
+ 64260848 × 80000000 giving us 5140867840000000

= 5653278572562464
