Alright, let's work through 87874073 times 6480959 step by step
87874073 × 6480959 = 6480959 × (87874073)
+ 6480959 × 3 resulting in 19442877
+ 6480959 × 70 which equals 453667130
+ 6480959 × 000 that equals 0
+ 6480959 × 4000 what gives us 25923836000
+ 6480959 × 70000 yielding 453667130000
+ 6480959 × 800000 that results in 5184767200000
+ 6480959 × 7000000 that results in 45366713000000
+ 6480959 × 80000000 that is equal 518476720000000

= 569508264276007
