We're going to solve 1804 multiplied by 1871
1804 × 1871 = 1871 × (1804)
+ 1871 × 4 that is equal 7484
+ 1871 × 00 yielding 0
+ 1871 × 800 that results in 1496800
+ 1871 × 1000 that equals 1871000

= 3375284
