No problem, we've got 4345 and 1309 to multiply
4345 × 1309 = 1309 × (4345)
+ 1309 × 5 what gives us 6545
+ 1309 × 40 yielding 52360
+ 1309 × 300 that results in 392700
+ 1309 × 4000 that is equal 5236000

= 5687605
