Alright, let's work through 75127040 times 57108672 step by step
75127040 × 57108672 = 57108672 × (75127040)
+ 57108672 × 0 giving us 0
+ 57108672 × 40 that equals 2284346880
+ 57108672 × 000 yielding 0
+ 57108672 × 7000 yielding 399760704000
+ 57108672 × 20000 that equals 1142173440000
+ 57108672 × 100000 that is equal 5710867200000
+ 57108672 × 5000000 yielding 285543360000000
+ 57108672 × 70000000 yielding 3997607040000000

= 4290405485690880
