No problem, we've got 6399 and 3262 to multiply
6399 × 3262 = 3262 × (6399)
+ 3262 × 9 that is equal 29358
+ 3262 × 90 yielding 293580
+ 3262 × 300 that is equal 978600
+ 3262 × 6000 that is equal 19572000

= 20873538
