We're dividing 671664 by 20 
Our goal is to divide 671664 by 20.

Moving on to step 1:
20 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 20

Step 2:
20 goes into 67 3 times with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 7 after subtracting 60 from 67.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 20

Going ahead to step 3:
The number 20 fits into 71 3 times, leaving a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 33.0
If we take 60 away from 71, we end up with 11.
Fetch the next digit (6) from the dividend, attach it to 11 and continue: 116 / 20

Going ahead to step 4:
When dividing 116 by 20, we get 5 with a remainder of 16.
Use 5 as the next digit of our solution. 
Result so far: 335.0
If we subtract 100 from 116, we get 16.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 20

Let's proceed to step 5:
If we divide 166 by 20, we get 8 and a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 3358.0
Subtracting 160 from 166 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 20

Let's proceed to step 6:
If we divide 64 by 20, we get 3 and a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 33583.0
The remainder is 4 after subtracting 60 from 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
If we divide 40 by 20, we get 2 and a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 33583.2
If we take 40 away from 40, we end up 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.

Moving on to step 8:
20 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 33583.2
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
0 divided by 20 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 33583.2
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 33583.2 with a remaining 0.0.