Alright, let's work through 64270026 times 10601537 step by step
64270026 × 10601537 = 10601537 × (64270026)
+ 10601537 × 6 that equals 63609222
+ 10601537 × 20 giving us 212030740
+ 10601537 × 000 that results in 0
+ 10601537 × 0000 that results in 0
+ 10601537 × 70000 that results in 742107590000
+ 10601537 × 200000 that results in 2120307400000
+ 10601537 × 4000000 which equals 42406148000000
+ 10601537 × 60000000 yielding 636092220000000

= 681361058629962
