Alright, let's work through 89339985 times 18017337 step by step
89339985 × 18017337 = 18017337 × (89339985)
+ 18017337 × 5 yielding 90086685
+ 18017337 × 80 that is equal 1441386960
+ 18017337 × 900 which equals 16215603300
+ 18017337 × 9000 that results in 162156033000
+ 18017337 × 30000 that results in 540520110000
+ 18017337 × 300000 yielding 5405201100000
+ 18017337 × 9000000 producing 162156033000000
+ 18017337 × 80000000 that is equal 1441386960000000

= 1609668617319945
