No problem, we've got 2173 and 4053 to multiply
2173 × 4053 = 4053 × (2173)
+ 4053 × 3 which equals 12159
+ 4053 × 70 giving us 283710
+ 4053 × 100 what gives us 405300
+ 4053 × 2000 yielding 8106000

= 8807169
