Alright, let's work through 77466871 times 87405868 step by step
77466871 × 87405868 = 87405868 × (77466871)
+ 87405868 × 1 that is equal 87405868
+ 87405868 × 70 that is equal 6118410760
+ 87405868 × 800 yielding 69924694400
+ 87405868 × 6000 what gives us 524435208000
+ 87405868 × 60000 producing 5244352080000
+ 87405868 × 400000 producing 34962347200000
+ 87405868 × 7000000 that equals 611841076000000
+ 87405868 × 70000000 that equals 6118410760000000

= 6771059100999028
