No problem, we've got 6321 and 1159 to multiply
6321 × 1159 = 1159 × (6321)
+ 1159 × 1 that results in 1159
+ 1159 × 20 that equals 23180
+ 1159 × 300 what gives us 347700
+ 1159 × 6000 giving us 6954000

= 7326039
