Alright, let's work through 1655 times 3591 step by step
1655 × 3591 = 3591 × (1655)
+ 3591 × 5 which equals 17955
+ 3591 × 50 what gives us 179550
+ 3591 × 600 yielding 2154600
+ 3591 × 1000 that equals 3591000

= 5943105
