Alright, let's work through 1140 times 5983 step by step
1140 × 5983 = 5983 × (1140)
+ 5983 × 0 which equals 0
+ 5983 × 40 which equals 239320
+ 5983 × 100 what gives us 598300
+ 5983 × 1000 giving us 5983000

= 6820620
