We're going to solve 1685 multiplied by 7789
1685 × 7789 = 7789 × (1685)
+ 7789 × 5 what gives us 38945
+ 7789 × 80 which equals 623120
+ 7789 × 600 producing 4673400
+ 7789 × 1000 yielding 7789000

= 13124465
