We're going to solve 1939 multiplied by 1089
1939 × 1089 = 1089 × (1939)
+ 1089 × 9 that is equal 9801
+ 1089 × 30 resulting in 32670
+ 1089 × 900 what gives us 980100
+ 1089 × 1000 yielding 1089000

= 2111571
