Alright, let's work through 89695989 times 21938831 step by step
89695989 × 21938831 = 21938831 × (89695989)
+ 21938831 × 9 yielding 197449479
+ 21938831 × 80 giving us 1755106480
+ 21938831 × 900 that equals 19744947900
+ 21938831 × 5000 that equals 109694155000
+ 21938831 × 90000 producing 1974494790000
+ 21938831 × 600000 which equals 13163298600000
+ 21938831 × 9000000 yielding 197449479000000
+ 21938831 × 80000000 that equals 1755106480000000

= 1967825144048859
