Alright, let's work through 3079 times 7839 step by step
3079 × 7839 = 7839 × (3079)
+ 7839 × 9 producing 70551
+ 7839 × 70 that equals 548730
+ 7839 × 000 giving us 0
+ 7839 × 3000 that is equal 23517000

= 24136281
