No problem, we've got 1642 and 3171 to multiply
1642 × 3171 = 3171 × (1642)
+ 3171 × 2 that is equal 6342
+ 3171 × 40 that results in 126840
+ 3171 × 600 that results in 1902600
+ 3171 × 1000 yielding 3171000

= 5206782
