Alright, let's work through 1709 times 1072 step by step
1709 × 1072 = 1072 × (1709)
+ 1072 × 9 that is equal 9648
+ 1072 × 00 giving us 0
+ 1072 × 700 yielding 750400
+ 1072 × 1000 producing 1072000

= 1832048
