How to pay installments on the product page?

[anapdeabreu]

<p style="font-size:16px;margin-bottom: 16px;top: 8px;position: relative;">
Em até 12x de<span><b>{{- product.price | times: 1.2161 | divided_by: 12 | round: 2 | money -}}</b></span>
</p>

I don't know which file and which part I put the script in. Does anyone know how to help me?

[anapdeabreu]

https://lojabauer.com.br/collections/brincos/products/brinco-longo-estilizado-tres-pedras-zirconia-b...