We're going to solve 1815 multiplied by 1143
1815 × 1143 = 1143 × (1815)
+ 1143 × 5 that is equal 5715
+ 1143 × 10 that results in 11430
+ 1143 × 800 what gives us 914400
+ 1143 × 1000 producing 1143000

= 2074545
