We're going to solve 1800 multiplied by 1615
1800 × 1615 = 1615 × (1800)
+ 1615 × 0 what gives us 0
+ 1615 × 00 yielding 0
+ 1615 × 800 giving us 1292000
+ 1615 × 1000 resulting in 1615000

= 2907000
