Alright, let's work through 90757064 times 71459329 step by step
90757064 × 71459329 = 71459329 × (90757064)
+ 71459329 × 4 that is equal 285837316
+ 71459329 × 60 giving us 4287559740
+ 71459329 × 000 that results in 0
+ 71459329 × 7000 that results in 500215303000
+ 71459329 × 50000 that equals 3572966450000
+ 71459329 × 700000 producing 50021530300000
+ 71459329 × 0000000 what gives us 0
+ 71459329 × 90000000 producing 6431339610000000

= 6485438895450056
