Alright, let's work through 89328873 times 55408983 step by step
89328873 × 55408983 = 55408983 × (89328873)
+ 55408983 × 3 that is equal 166226949
+ 55408983 × 70 that results in 3878628810
+ 55408983 × 800 that results in 44327186400
+ 55408983 × 8000 that equals 443271864000
+ 55408983 × 20000 that is equal 1108179660000
+ 55408983 × 300000 that is equal 16622694900000
+ 55408983 × 9000000 resulting in 498680847000000
+ 55408983 × 80000000 that is equal 4432718640000000

= 4949622005466159
