No problem, we've got 7639 and 9631 to multiply
7639 × 9631 = 9631 × (7639)
+ 9631 × 9 that equals 86679
+ 9631 × 30 which equals 288930
+ 9631 × 600 producing 5778600
+ 9631 × 7000 what gives us 67417000

= 73571209
