We're going to solve 7843 multiplied by 8509
7843 × 8509 = 8509 × (7843)
+ 8509 × 3 that is equal 25527
+ 8509 × 40 which equals 340360
+ 8509 × 800 resulting in 6807200
+ 8509 × 7000 giving us 59563000

= 66736087
