Alright, let's work through 5679 times 668 step by step
5679 × 668 = 668 × (5679)
+ 668 × 9 producing 6012
+ 668 × 70 that results in 46760
+ 668 × 600 what gives us 400800
+ 668 × 5000 that equals 3340000

= 3793572
