No problem, we've got 3629 and 1905 to multiply
3629 × 1905 = 1905 × (3629)
+ 1905 × 9 what gives us 17145
+ 1905 × 20 that equals 38100
+ 1905 × 600 which equals 1143000
+ 1905 × 3000 that equals 5715000

= 6913245
