No problem, we've got 8391 and 5388 to multiply
8391 × 5388 = 5388 × (8391)
+ 5388 × 1 that results in 5388
+ 5388 × 90 that equals 484920
+ 5388 × 300 that is equal 1616400
+ 5388 × 8000 that is equal 43104000

= 45210708
