No problem, we've got 7195 and 644 to multiply
7195 × 644 = 644 × (7195)
+ 644 × 5 what gives us 3220
+ 644 × 90 yielding 57960
+ 644 × 100 that equals 64400
+ 644 × 7000 resulting in 4508000

= 4633580
