Alright, let's work through 10878809 times 49396884 step by step
10878809 × 49396884 = 49396884 × (10878809)
+ 49396884 × 9 giving us 444571956
+ 49396884 × 00 yielding 0
+ 49396884 × 800 resulting in 39517507200
+ 49396884 × 8000 yielding 395175072000
+ 49396884 × 70000 that is equal 3457781880000
+ 49396884 × 800000 yielding 39517507200000
+ 49396884 × 0000000 that is equal 0
+ 49396884 × 10000000 producing 493968840000000

= 537379266231156
