Alright, let's work through 6789 times 7607 step by step
6789 × 7607 = 7607 × (6789)
+ 7607 × 9 that results in 68463
+ 7607 × 80 which equals 608560
+ 7607 × 700 which equals 5324900
+ 7607 × 6000 which equals 45642000

= 51643923
