We look at the division of 21004046 by 670 
We're looking to find how many times 670 goes into 21004046.

Going ahead to step 1:
670 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 670

On to step 2:
When dividing 21 by 670, we get 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Append the next digit (0) from the dividend to 21 and continue with: 210 / 670

Going ahead to step 3:
When dividing 210 by 670, we get 0 with a remainder of 210.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 210 leaves us with 210.
Take the next digit (0) from the dividend and append it to 210, then repeat: 2100 / 670

Let's proceed to step 4:
If we divide 2100 by 670, we get 3 and a remainder of 90.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 90 after subtracting 2010 from 2100.
Append the next digit (4) from the dividend to 90 and continue with: 904 / 670

Advancing to step 5:
904 divided by 670 is 1 with a remainder of 234.
The next digit of our result is 1. 
Result so far: 31.0
Subtracting 670 from 904 leaves us with 234.
Bring next digit (0) of the dividend behind the 234 and repeat the process: 2340 / 670

Moving on to step 6:
If we divide 2340 by 670, we get 3 and a remainder of 330.
Put 3 as the next digit of the answer. 
Result so far: 313.0
If we subtract 2010 from 2340, we get 330.
Include the next digit (4) from the dividend after 330, then repeat: 3304 / 670

Moving on to step 7:
The number 670 fits into 3304 4 times, leaving a remainder of 624.
The number 4 becomes the next digit in our result. 
Result so far: 3134.0
Subtracting 2680 from 3304 leaves us with 624.
Take the next digit (6) from the dividend and append it to 624, then repeat: 6246 / 670

Step 8:
If we divide 6246 by 670, we get 9 and a remainder of 216.
Write down 9 as next digit of the result. 
Result so far: 31349.0
If we subtract 6030 from 6246, we get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 9:
670 can be fit into 2160 3 times, resulting in a remainder of 150.
Put 3 as the next digit of the answer. 
Result so far: 31349.3
If we take 2010 away from 2160, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 10:
670 goes into 1500 2 times with a remainder of 160.
The number 2 becomes the next digit in our result. 
Result so far: 31349.32
If we take 1340 away from 1500, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 11:
When dividing 1600 by 670, we get 2 with a remainder of 260.
The next digit of our result is 2. 
Result so far: 31349.322
Subtracting 1340 from 1600 leaves us with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

After the division, we end up with 31349.322 and a remainder of 0.026.