Let's divide 4266190 by 639
Let's see how many times 639 fits into 4266190.

Step 1:
639 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 639

Let's proceed to step 2:
If we divide 42 by 639, we get 0 and a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Take the next digit (6) from the dividend and append it to 42, then repeat: 426 / 639

Advancing to step 3:
If we divide 426 by 639, we get 0 and a remainder of 426.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 426 to get 426.
Take the next digit (6) from the dividend and append it to 426, then repeat: 4266 / 639

On to step 4:
639 can be fit into 4266 6 times, resulting in a remainder of 432.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 432 after subtracting 3834 from 4266.
Include the next digit (1) from the dividend after 432, then repeat: 4321 / 639

Moving on to step 5:
The number 639 fits into 4321 6 times, leaving a remainder of 487.
Put 6 as the next digit of the answer. 
Result so far: 66.0
Deduct 3834 from 4321 and we're left with 487.
Bring next digit (9) of the dividend behind the 487 and repeat the process: 4879 / 639

Step 6:
If we divide 4879 by 639, we get 7 and a remainder of 406.
Record the quotient 7 as the next digit in the result. 
Result so far: 667.0
If we take 4473 away from 4879, we end up with 406.
Append the next digit (0) from the dividend to 406 and continue with: 4060 / 639

On to step 7:
639 can be fit into 4060 6 times, resulting in a remainder of 226.
Record the quotient 6 as the next digit in the result. 
Result so far: 6676.0
Subtracting 3834 from 4060 leaves us with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Let's proceed to step 8:
639 goes into 2260 3 times with a remainder of 343.
Record the quotient 3 as the next digit in the result. 
Result so far: 6676.3
If we take 1917 away from 2260, we end up with 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

Advancing to step 9:
The number 639 fits into 3430 5 times, leaving a remainder of 235.
Write down 5 as next digit of the result. 
Result so far: 6676.35
Subtracting 3195 from 3430 leaves us with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Step 10:
639 can be fit into 2350 3 times, resulting in a remainder of 433.
The next digit of our result is 3. 
Result so far: 6676.353
Subtracting 1917 from 2350 leaves us with 433.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4330, and continue the process.

Let's proceed to step 11:
The number 639 fits into 4330 6 times, leaving a remainder of 496.
The next digit of our result is 6. 
Result so far: 6676.3536
If we subtract 3834 from 4330, we get 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Step 12:
639 goes into 4960 7 times with a remainder of 487.
Record the quotient 7 as the next digit in the result. 
Result so far: 6676.35367
If we take 4473 away from 4960, we end up with 487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4870, and continue the process.

Advancing to step 13:
639 can be fit into 4870 7 times, resulting in a remainder of 397.
The next digit of our result is 7. 
Result so far: 6676.353677
Subtracting 4473 from 4870 leaves us with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Our division results in 6676.353677 with a remaining 3.97e-05.