Alright, let's work through 66748023 times 83271993 step by step
66748023 × 83271993 = 83271993 × (66748023)
+ 83271993 × 3 producing 249815979
+ 83271993 × 20 that is equal 1665439860
+ 83271993 × 000 that equals 0
+ 83271993 × 8000 giving us 666175944000
+ 83271993 × 40000 which equals 3330879720000
+ 83271993 × 700000 yielding 58290395100000
+ 83271993 × 6000000 what gives us 499631958000000
+ 83271993 × 60000000 yielding 4996319580000000

= 5558240904019839
