Alright, let's work through 89144929 times 92988289 step by step
89144929 × 92988289 = 92988289 × (89144929)
+ 92988289 × 9 resulting in 836894601
+ 92988289 × 20 that results in 1859765780
+ 92988289 × 900 producing 83689460100
+ 92988289 × 4000 which equals 371953156000
+ 92988289 × 40000 that results in 3719531560000
+ 92988289 × 100000 giving us 9298828900000
+ 92988289 × 9000000 giving us 836894601000000
+ 92988289 × 80000000 that equals 7439063120000000

= 8289434420736481
