No problem, we've got 2645 and 7806 to multiply
2645 × 7806 = 7806 × (2645)
+ 7806 × 5 that results in 39030
+ 7806 × 40 resulting in 312240
+ 7806 × 600 what gives us 4683600
+ 7806 × 2000 that equals 15612000

= 20646870
