No problem, we've got 4137 and 975 to multiply
4137 × 975 = 975 × (4137)
+ 975 × 7 resulting in 6825
+ 975 × 30 resulting in 29250
+ 975 × 100 what gives us 97500
+ 975 × 4000 what gives us 3900000

= 4033575
