Alright, let's work through 1660 times 3413 step by step
1660 × 3413 = 3413 × (1660)
+ 3413 × 0 yielding 0
+ 3413 × 60 that results in 204780
+ 3413 × 600 that is equal 2047800
+ 3413 × 1000 resulting in 3413000

= 5665580
