No problem, we've got 9664 and 7628 to multiply
9664 × 7628 = 7628 × (9664)
+ 7628 × 4 that results in 30512
+ 7628 × 60 what gives us 457680
+ 7628 × 600 that is equal 4576800
+ 7628 × 9000 that results in 68652000

= 73716992
