No problem, we've got 4162 and 1591 to multiply
4162 × 1591 = 1591 × (4162)
+ 1591 × 2 that results in 3182
+ 1591 × 60 what gives us 95460
+ 1591 × 100 producing 159100
+ 1591 × 4000 giving us 6364000

= 6621742
