Alright, let's work through 1791 times 3491 step by step
1791 × 3491 = 3491 × (1791)
+ 3491 × 1 giving us 3491
+ 3491 × 90 resulting in 314190
+ 3491 × 700 yielding 2443700
+ 3491 × 1000 what gives us 3491000

= 6252381
