Alright, let's work through 99869830 times 82533918 step by step
99869830 × 82533918 = 82533918 × (99869830)
+ 82533918 × 0 that is equal 0
+ 82533918 × 30 resulting in 2476017540
+ 82533918 × 800 giving us 66027134400
+ 82533918 × 9000 yielding 742805262000
+ 82533918 × 60000 that equals 4952035080000
+ 82533918 × 800000 that is equal 66027134400000
+ 82533918 × 9000000 producing 742805262000000
+ 82533918 × 90000000 which equals 7428052620000000

= 8242648359893940
