Alright, let's work through 6888734 times 84871928 step by step
6888734 × 84871928 = 84871928 × (6888734)
+ 84871928 × 4 yielding 339487712
+ 84871928 × 30 that is equal 2546157840
+ 84871928 × 700 producing 59410349600
+ 84871928 × 8000 that equals 678975424000
+ 84871928 × 80000 giving us 6789754240000
+ 84871928 × 800000 that equals 67897542400000
+ 84871928 × 6000000 that results in 509231568000000

= 584660136059152
