No problem, we've got 2120 and 8179 to multiply
2120 × 8179 = 8179 × (2120)
+ 8179 × 0 which equals 0
+ 8179 × 20 what gives us 163580
+ 8179 × 100 resulting in 817900
+ 8179 × 2000 which equals 16358000

= 17339480
