Alright, let's work through 1373 times 820 step by step
1373 × 820 = 820 × (1373)
+ 820 × 3 that equals 2460
+ 820 × 70 giving us 57400
+ 820 × 300 what gives us 246000
+ 820 × 1000 what gives us 820000

= 1125860
