Alright, let's work through 54978011 times 87684288 step by step
54978011 × 87684288 = 87684288 × (54978011)
+ 87684288 × 1 producing 87684288
+ 87684288 × 10 that equals 876842880
+ 87684288 × 000 that equals 0
+ 87684288 × 8000 that equals 701474304000
+ 87684288 × 70000 that results in 6137900160000
+ 87684288 × 900000 what gives us 78915859200000
+ 87684288 × 4000000 yielding 350737152000000
+ 87684288 × 50000000 what gives us 4384214400000000

= 4820707750191168
