We're going to solve 1689 multiplied by 6920
1689 × 6920 = 6920 × (1689)
+ 6920 × 9 yielding 62280
+ 6920 × 80 that is equal 553600
+ 6920 × 600 giving us 4152000
+ 6920 × 1000 which equals 6920000

= 11687880
