No problem, we've got 9171 and 9791 to multiply
9171 × 9791 = 9791 × (9171)
+ 9791 × 1 that is equal 9791
+ 9791 × 70 what gives us 685370
+ 9791 × 100 what gives us 979100
+ 9791 × 9000 producing 88119000

= 89793261
