We're going to solve 1971 multiplied by 7839
1971 × 7839 = 7839 × (1971)
+ 7839 × 1 what gives us 7839
+ 7839 × 70 resulting in 548730
+ 7839 × 900 producing 7055100
+ 7839 × 1000 that equals 7839000

= 15450669
