We're going to solve 1672 multiplied by 6990
1672 × 6990 = 6990 × (1672)
+ 6990 × 2 producing 13980
+ 6990 × 70 that equals 489300
+ 6990 × 600 producing 4194000
+ 6990 × 1000 giving us 6990000

= 11687280
