No problem, we've got 5379 and 9991 to multiply
5379 × 9991 = 9991 × (5379)
+ 9991 × 9 resulting in 89919
+ 9991 × 70 yielding 699370
+ 9991 × 300 which equals 2997300
+ 9991 × 5000 that is equal 49955000

= 53741589
