Alright, let's work through 66330520 times 79489836 step by step
66330520 × 79489836 = 79489836 × (66330520)
+ 79489836 × 0 what gives us 0
+ 79489836 × 20 that equals 1589796720
+ 79489836 × 500 yielding 39744918000
+ 79489836 × 0000 that equals 0
+ 79489836 × 30000 that equals 2384695080000
+ 79489836 × 300000 what gives us 23846950800000
+ 79489836 × 6000000 giving us 476939016000000
+ 79489836 × 60000000 that is equal 4769390160000000

= 5272602156594720
