No problem, we've got 5639 and 7669 to multiply
5639 × 7669 = 7669 × (5639)
+ 7669 × 9 what gives us 69021
+ 7669 × 30 yielding 230070
+ 7669 × 600 that is equal 4601400
+ 7669 × 5000 that is equal 38345000

= 43245491
