No problem, we've got 9921 and 7504 to multiply
9921 × 7504 = 7504 × (9921)
+ 7504 × 1 what gives us 7504
+ 7504 × 20 that is equal 150080
+ 7504 × 900 giving us 6753600
+ 7504 × 9000 that equals 67536000

= 74447184
