No problem, we've got 6879 and 8401 to multiply
6879 × 8401 = 8401 × (6879)
+ 8401 × 9 that is equal 75609
+ 8401 × 70 what gives us 588070
+ 8401 × 800 that equals 6720800
+ 8401 × 6000 that equals 50406000

= 57790479
