No problem, we've got 4138 and 7858 to multiply
4138 × 7858 = 7858 × (4138)
+ 7858 × 8 giving us 62864
+ 7858 × 30 yielding 235740
+ 7858 × 100 that equals 785800
+ 7858 × 4000 which equals 31432000

= 32516404
