No problem, we've got 8581 and 5507 to multiply
8581 × 5507 = 5507 × (8581)
+ 5507 × 1 what gives us 5507
+ 5507 × 80 yielding 440560
+ 5507 × 500 that results in 2753500
+ 5507 × 8000 giving us 44056000

= 47255567
