Let's calculate 1157 x 4220
1157 × 4220 = 4220 × (1157)
+ 4220 × 7 that results in 29540
+ 4220 × 50 that is equal 211000
+ 4220 × 100 that is equal 422000
+ 4220 × 1000 that results in 4220000

= 4882540
