Alright, let's work through 1128 times 7713 step by step
1128 × 7713 = 7713 × (1128)
+ 7713 × 8 that results in 61704
+ 7713 × 20 what gives us 154260
+ 7713 × 100 that is equal 771300
+ 7713 × 1000 what gives us 7713000

= 8700264
