No problem, we've got 2490 and 8309 to multiply
2490 × 8309 = 8309 × (2490)
+ 8309 × 0 which equals 0
+ 8309 × 90 what gives us 747810
+ 8309 × 400 that results in 3323600
+ 8309 × 2000 that equals 16618000

= 20689410
