Alright, let's work through 3509 times 2801 step by step
3509 × 2801 = 2801 × (3509)
+ 2801 × 9 that equals 25209
+ 2801 × 00 which equals 0
+ 2801 × 500 yielding 1400500
+ 2801 × 3000 resulting in 8403000

= 9828709
