how does the division of labour reduces cost of production - Economics - Production and Costs

Question

how does the division of labour reduces cost of
production????

Richa Gupta · Accepted Answer

Division of labour refers to the process of dividing the work
into smaller units and thereby assigning them to different workers
This process leads to specialization of individual workers as the
work is divided among them depending on their suitability This in
turn raises their working efficiency which thereby, raises the
productivity of work This rise in efficiency and productivity,
thus, reduces the overall cost of production

how does the division of labour reduces cost of production????