Alright, let's work through 9729 times 4279 step by step
9729 × 4279 = 4279 × (9729)
+ 4279 × 9 what gives us 38511
+ 4279 × 20 giving us 85580
+ 4279 × 700 yielding 2995300
+ 4279 × 9000 giving us 38511000

= 41630391
