No problem, we've got 1321 and 2801 to multiply
1321 × 2801 = 2801 × (1321)
+ 2801 × 1 that is equal 2801
+ 2801 × 20 that is equal 56020
+ 2801 × 300 what gives us 840300
+ 2801 × 1000 that equals 2801000

= 3700121
