We're dividing 66420 by 48 
We want to divide 66420 by 48.

Step 1:
If we divide 6 by 48, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 48

Going ahead to step 2:
48 can be fit into 66 1 times, resulting in a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 18 after subtracting 48 from 66.
Take the next digit (4) from the dividend and append it to 18, then repeat: 184 / 48

Going ahead to step 3:
184 divided by 48 is 3 with a remainder of 40.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Subtract 144 from 184 to get 40.
Include the next digit (2) from the dividend after 40, then repeat: 402 / 48

Step 4:
48 can be fit into 402 8 times, resulting in a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 138.0
If we subtract 384 from 402, we get 18.
Bring next digit (0) of the dividend behind the 18 and repeat the process: 180 / 48

On to step 5:
180 divided by 48 is 3 with a remainder of 36.
Write down 3 as next digit of the result. 
Result so far: 1383.0
Subtract 144 from 180 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 6:
The number 48 fits into 360 7 times, leaving a remainder of 24.
Write down 7 as next digit of the result. 
Result so far: 1383.7
Subtract 336 from 360 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 7:
48 goes into 240 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 1383.75
Subtracting 240 from 240 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
When dividing 0 by 48, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1383.75
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
48 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1383.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 1383.75 with a remaining 0.0.