No problem, we've got 6644 and 700 to multiply
6644 × 700 = 700 × (6644)
+ 700 × 4 what gives us 2800
+ 700 × 40 that equals 28000
+ 700 × 600 that results in 420000
+ 700 × 6000 what gives us 4200000

= 4650800
