Alright, let's work through 87018540 times 74128133 step by step
87018540 × 74128133 = 74128133 × (87018540)
+ 74128133 × 0 that is equal 0
+ 74128133 × 40 resulting in 2965125320
+ 74128133 × 500 producing 37064066500
+ 74128133 × 8000 that is equal 593025064000
+ 74128133 × 10000 yielding 741281330000
+ 74128133 × 000000 resulting in 0
+ 74128133 × 7000000 producing 518896931000000
+ 74128133 × 80000000 that equals 5930250640000000

= 6450521906585820
