Alright, let's work through 51946724 times 12793736 step by step
51946724 × 12793736 = 12793736 × (51946724)
+ 12793736 × 4 giving us 51174944
+ 12793736 × 20 that equals 255874720
+ 12793736 × 700 that results in 8955615200
+ 12793736 × 6000 yielding 76762416000
+ 12793736 × 40000 yielding 511749440000
+ 12793736 × 900000 yielding 11514362400000
+ 12793736 × 1000000 that is equal 12793736000000
+ 12793736 × 50000000 resulting in 639686800000000

= 664592672920864
