Alright, let's work through 66731721 times 7050478 step by step
66731721 × 7050478 = 7050478 × (66731721)
+ 7050478 × 1 that equals 7050478
+ 7050478 × 20 yielding 141009560
+ 7050478 × 700 yielding 4935334600
+ 7050478 × 1000 that equals 7050478000
+ 7050478 × 30000 that is equal 211514340000
+ 7050478 × 700000 producing 4935334600000
+ 7050478 × 6000000 producing 42302868000000
+ 7050478 × 60000000 giving us 423028680000000

= 470490530812638
