Let's calculate 1163 x 1181
1163 × 1181 = 1181 × (1163)
+ 1181 × 3 that is equal 3543
+ 1181 × 60 that results in 70860
+ 1181 × 100 that is equal 118100
+ 1181 × 1000 what gives us 1181000

= 1373503
