No problem, we've got 1388 and 5818 to multiply
1388 × 5818 = 5818 × (1388)
+ 5818 × 8 what gives us 46544
+ 5818 × 80 yielding 465440
+ 5818 × 300 which equals 1745400
+ 5818 × 1000 what gives us 5818000

= 8075384
