No problem, we've got 7891 and 9234 to multiply
7891 × 9234 = 9234 × (7891)
+ 9234 × 1 producing 9234
+ 9234 × 90 producing 831060
+ 9234 × 800 resulting in 7387200
+ 9234 × 7000 giving us 64638000

= 72865494
