No problem, we've got 5251 and 1091 to multiply
5251 × 1091 = 1091 × (5251)
+ 1091 × 1 that is equal 1091
+ 1091 × 50 that equals 54550
+ 1091 × 200 yielding 218200
+ 1091 × 5000 resulting in 5455000

= 5728841
