Alright, let's work through 16638709 times 14245169 step by step
16638709 × 14245169 = 14245169 × (16638709)
+ 14245169 × 9 yielding 128206521
+ 14245169 × 00 that results in 0
+ 14245169 × 700 which equals 9971618300
+ 14245169 × 8000 that results in 113961352000
+ 14245169 × 30000 giving us 427355070000
+ 14245169 × 600000 which equals 8547101400000
+ 14245169 × 6000000 that results in 85471014000000
+ 14245169 × 10000000 producing 142451690000000

= 237021221646821
