Alright, let's work through 1491 times 2161 step by step
1491 × 2161 = 2161 × (1491)
+ 2161 × 1 that results in 2161
+ 2161 × 90 resulting in 194490
+ 2161 × 400 which equals 864400
+ 2161 × 1000 what gives us 2161000

= 3222051
