No problem, we've got 3601 and 507 to multiply
3601 × 507 = 507 × (3601)
+ 507 × 1 that results in 507
+ 507 × 00 what gives us 0
+ 507 × 600 that results in 304200
+ 507 × 3000 giving us 1521000

= 1825707
