Alright, let's work through 1583 times 2739 step by step
1583 × 2739 = 2739 × (1583)
+ 2739 × 3 giving us 8217
+ 2739 × 80 what gives us 219120
+ 2739 × 500 that equals 1369500
+ 2739 × 1000 what gives us 2739000

= 4335837
