Alright, let's work through 99678829 times 62293341 step by step
99678829 × 62293341 = 62293341 × (99678829)
+ 62293341 × 9 resulting in 560640069
+ 62293341 × 20 which equals 1245866820
+ 62293341 × 800 yielding 49834672800
+ 62293341 × 8000 which equals 498346728000
+ 62293341 × 70000 resulting in 4360533870000
+ 62293341 × 600000 that results in 37376004600000
+ 62293341 × 9000000 producing 560640069000000
+ 62293341 × 90000000 that is equal 5606400690000000

= 6209327285377689
