We're going to solve 1978 multiplied by 7901
1978 × 7901 = 7901 × (1978)
+ 7901 × 8 resulting in 63208
+ 7901 × 70 that results in 553070
+ 7901 × 900 which equals 7110900
+ 7901 × 1000 giving us 7901000

= 15628178
