Alright, let's work through 89379842 times 72716322 step by step
89379842 × 72716322 = 72716322 × (89379842)
+ 72716322 × 2 producing 145432644
+ 72716322 × 40 resulting in 2908652880
+ 72716322 × 800 that is equal 58173057600
+ 72716322 × 9000 giving us 654446898000
+ 72716322 × 70000 resulting in 5090142540000
+ 72716322 × 300000 that results in 21814896600000
+ 72716322 × 9000000 yielding 654446898000000
+ 72716322 × 80000000 yielding 5817305760000000

= 6499373371181124
