Alright, let's work through 2091 times 3421 step by step
2091 × 3421 = 3421 × (2091)
+ 3421 × 1 what gives us 3421
+ 3421 × 90 yielding 307890
+ 3421 × 000 that equals 0
+ 3421 × 2000 yielding 6842000

= 7153311
