No problem, we've got 8241 and 2600 to multiply
8241 × 2600 = 2600 × (8241)
+ 2600 × 1 that equals 2600
+ 2600 × 40 what gives us 104000
+ 2600 × 200 what gives us 520000
+ 2600 × 8000 that equals 20800000

= 21426600
