No problem, we've got 4212 and 620 to multiply
4212 × 620 = 620 × (4212)
+ 620 × 2 resulting in 1240
+ 620 × 10 what gives us 6200
+ 620 × 200 that is equal 124000
+ 620 × 4000 that is equal 2480000

= 2611440
