Alright, let's work through 1672 times 2486 step by step
1672 × 2486 = 2486 × (1672)
+ 2486 × 2 that is equal 4972
+ 2486 × 70 what gives us 174020
+ 2486 × 600 yielding 1491600
+ 2486 × 1000 resulting in 2486000

= 4156592
