No problem, we've got 9640 and 6435 to multiply
9640 × 6435 = 6435 × (9640)
+ 6435 × 0 that is equal 0
+ 6435 × 40 yielding 257400
+ 6435 × 600 that equals 3861000
+ 6435 × 9000 that equals 57915000

= 62033400
