Alright, let's work through 66491427 times 45664089 step by step
66491427 × 45664089 = 45664089 × (66491427)
+ 45664089 × 7 giving us 319648623
+ 45664089 × 20 producing 913281780
+ 45664089 × 400 producing 18265635600
+ 45664089 × 1000 what gives us 45664089000
+ 45664089 × 90000 that is equal 4109768010000
+ 45664089 × 400000 that equals 18265635600000
+ 45664089 × 6000000 that is equal 273984534000000
+ 45664089 × 60000000 giving us 2739845340000000

= 3036270440265003
