Alright, let's work through 18450564 times 66792099 step by step
18450564 × 66792099 = 66792099 × (18450564)
+ 66792099 × 4 producing 267168396
+ 66792099 × 60 producing 4007525940
+ 66792099 × 500 giving us 33396049500
+ 66792099 × 0000 that results in 0
+ 66792099 × 50000 that is equal 3339604950000
+ 66792099 × 400000 giving us 26716839600000
+ 66792099 × 8000000 what gives us 534336792000000
+ 66792099 × 10000000 producing 667920990000000

= 1232351897293836
