Alright, let's work through 9781643 times 75338722 step by step
9781643 × 75338722 = 75338722 × (9781643)
+ 75338722 × 3 that results in 226016166
+ 75338722 × 40 that equals 3013548880
+ 75338722 × 600 what gives us 45203233200
+ 75338722 × 1000 what gives us 75338722000
+ 75338722 × 80000 giving us 6027097760000
+ 75338722 × 700000 resulting in 52737105400000
+ 75338722 × 9000000 that equals 678048498000000

= 736936482680246
