No problem, we've got 6420 and 3709 to multiply
6420 × 3709 = 3709 × (6420)
+ 3709 × 0 yielding 0
+ 3709 × 20 which equals 74180
+ 3709 × 400 that results in 1483600
+ 3709 × 6000 which equals 22254000

= 23811780
