No problem, we've got 6844 and 1958 to multiply
6844 × 1958 = 1958 × (6844)
+ 1958 × 4 what gives us 7832
+ 1958 × 40 that is equal 78320
+ 1958 × 800 that results in 1566400
+ 1958 × 6000 which equals 11748000

= 13400552
