Alright, let's work through 3450 times 5679 step by step
3450 × 5679 = 5679 × (3450)
+ 5679 × 0 that is equal 0
+ 5679 × 50 that equals 283950
+ 5679 × 400 producing 2271600
+ 5679 × 3000 what gives us 17037000

= 19592550
