No problem, we've got 1636 and 6945 to multiply
1636 × 6945 = 6945 × (1636)
+ 6945 × 6 which equals 41670
+ 6945 × 30 yielding 208350
+ 6945 × 600 that equals 4167000
+ 6945 × 1000 what gives us 6945000

= 11362020
