No problem, we've got 1420 and 8555 to multiply
1420 × 8555 = 8555 × (1420)
+ 8555 × 0 that equals 0
+ 8555 × 20 what gives us 171100
+ 8555 × 400 what gives us 3422000
+ 8555 × 1000 giving us 8555000

= 12148100
