No problem, we've got 1339 and 790 to multiply
1339 × 790 = 790 × (1339)
+ 790 × 9 resulting in 7110
+ 790 × 30 that is equal 23700
+ 790 × 300 that results in 237000
+ 790 × 1000 resulting in 790000

= 1057810
