No problem, we've got 6171 and 1420 to multiply
6171 × 1420 = 1420 × (6171)
+ 1420 × 1 that is equal 1420
+ 1420 × 70 which equals 99400
+ 1420 × 100 that results in 142000
+ 1420 × 6000 resulting in 8520000

= 8762820
