Alright, let's work through 17949847 times 67731407 step by step
17949847 × 67731407 = 67731407 × (17949847)
+ 67731407 × 7 producing 474119849
+ 67731407 × 40 resulting in 2709256280
+ 67731407 × 800 which equals 54185125600
+ 67731407 × 9000 that results in 609582663000
+ 67731407 × 40000 producing 2709256280000
+ 67731407 × 900000 which equals 60958266300000
+ 67731407 × 7000000 resulting in 474119849000000
+ 67731407 × 10000000 yielding 677314070000000

= 1215768392744729
