Alright, let's work through 81077026 times 86565442 step by step
81077026 × 86565442 = 86565442 × (81077026)
+ 86565442 × 6 producing 519392652
+ 86565442 × 20 that is equal 1731308840
+ 86565442 × 000 giving us 0
+ 86565442 × 7000 that is equal 605958094000
+ 86565442 × 70000 which equals 6059580940000
+ 86565442 × 000000 yielding 0
+ 86565442 × 1000000 that results in 86565442000000
+ 86565442 × 80000000 that is equal 6925235360000000

= 7018468591735492
