Alright, let's work through 6474 times 789 step by step
6474 × 789 = 789 × (6474)
+ 789 × 4 giving us 3156
+ 789 × 70 giving us 55230
+ 789 × 400 giving us 315600
+ 789 × 6000 what gives us 4734000

= 5107986
