No problem, we've got 7720 and 5157 to multiply
7720 × 5157 = 5157 × (7720)
+ 5157 × 0 yielding 0
+ 5157 × 20 resulting in 103140
+ 5157 × 700 resulting in 3609900
+ 5157 × 7000 which equals 36099000

= 39812040
