No problem, we've got 6309 and 6461 to multiply
6309 × 6461 = 6461 × (6309)
+ 6461 × 9 what gives us 58149
+ 6461 × 00 yielding 0
+ 6461 × 300 resulting in 1938300
+ 6461 × 6000 what gives us 38766000

= 40762449
