No problem, we've got 2207 and 7855 to multiply
2207 × 7855 = 7855 × (2207)
+ 7855 × 7 that is equal 54985
+ 7855 × 00 that equals 0
+ 7855 × 200 which equals 1571000
+ 7855 × 2000 which equals 15710000

= 17335985
