No problem, we've got 7928 and 3521 to multiply
7928 × 3521 = 3521 × (7928)
+ 3521 × 8 giving us 28168
+ 3521 × 20 yielding 70420
+ 3521 × 900 that is equal 3168900
+ 3521 × 7000 that is equal 24647000

= 27914488
