No problem, we've got 9171 and 7939 to multiply
9171 × 7939 = 7939 × (9171)
+ 7939 × 1 giving us 7939
+ 7939 × 70 resulting in 555730
+ 7939 × 100 resulting in 793900
+ 7939 × 9000 that equals 71451000

= 72808569
