No problem, we've got 9249 and 644 to multiply
9249 × 644 = 644 × (9249)
+ 644 × 9 what gives us 5796
+ 644 × 40 that is equal 25760
+ 644 × 200 that results in 128800
+ 644 × 9000 producing 5796000

= 5956356
