We're going to solve 1987 multiplied by 7806
1987 × 7806 = 7806 × (1987)
+ 7806 × 7 that is equal 54642
+ 7806 × 80 resulting in 624480
+ 7806 × 900 producing 7025400
+ 7806 × 1000 what gives us 7806000

= 15510522
