No problem, we've got 7910 and 999 to multiply
7910 × 999 = 999 × (7910)
+ 999 × 0 which equals 0
+ 999 × 10 that results in 9990
+ 999 × 900 that equals 899100
+ 999 × 7000 that results in 6993000

= 7902090
