We're going to solve 7815 multiplied by 2104
7815 × 2104 = 2104 × (7815)
+ 2104 × 5 producing 10520
+ 2104 × 10 yielding 21040
+ 2104 × 800 what gives us 1683200
+ 2104 × 7000 yielding 14728000

= 16442760
