No problem, we've got 3379 and 2157 to multiply
3379 × 2157 = 2157 × (3379)
+ 2157 × 9 that is equal 19413
+ 2157 × 70 yielding 150990
+ 2157 × 300 yielding 647100
+ 2157 × 3000 that is equal 6471000

= 7288503
