4020237 divided by 668 
We're looking to find how many times 668 goes into 4020237.

Going ahead to step 1:
When dividing 4 by 668, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 668

Moving on to step 2:
668 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 40, we end up with 40.
Take the next digit (2) from the dividend and append it to 40, then repeat: 402 / 668

Advancing to step 3:
If we divide 402 by 668, we get 0 and a remainder of 402.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 402, we end up with 402.
Append the next digit (0) from the dividend to 402 and continue with: 4020 / 668

Let's proceed to step 4:
The number 668 fits into 4020 6 times, leaving a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 4008 away from 4020, we end up with 12.
Fetch the next digit (2) from the dividend, attach it to 12 and continue: 122 / 668

Going ahead to step 5:
When dividing 122 by 668, we get 0 with a remainder of 122.
The number 0 becomes the next digit in our result. 
Result so far: 60.0
Subtract 0 from 122 to get 122.
Append the next digit (3) from the dividend to 122 and continue with: 1223 / 668

Going ahead to step 6:
1223 divided by 668 is 1 with a remainder of 555.
Put 1 as the next digit of the answer. 
Result so far: 601.0
If we take 668 away from 1223, we end up with 555.
Grab the next digit (7) from the dividend, add it to 555, then carry on: 5557 / 668

Step 7:
668 goes into 5557 8 times with a remainder of 213.
Use 8 as the next digit of our solution. 
Result so far: 6018.0
Subtracting 5344 from 5557 leaves us with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

On to step 8:
When dividing 2130 by 668, we get 3 with a remainder of 126.
The number 3 becomes the next digit in our result. 
Result so far: 6018.3
Subtracting 2004 from 2130 leaves us with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Going ahead to step 9:
When dividing 1260 by 668, we get 1 with a remainder of 592.
The number 1 becomes the next digit in our result. 
Result so far: 6018.31
Subtracting 668 from 1260 leaves us with 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

On to step 10:
If we divide 5920 by 668, we get 8 and a remainder of 576.
The next digit of our result is 8. 
Result so far: 6018.318
Subtract 5344 from 5920 to get 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Let's proceed to step 11:
5760 divided by 668 is 8 with a remainder of 416.
Write down 8 as next digit of the result. 
Result so far: 6018.3188
Subtracting 5344 from 5760 leaves us with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

After the division, we end up with 6018.3188 and a remainder of 0.00416.