We're dividing 3544446 by 639 
Let's see how many times 639 fits into 3544446.

Moving on to step 1:
When dividing 3 by 639, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 639

Moving on to step 2:
If we divide 35 by 639, we get 0 and a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 35 and we're left with 35.
Grab the next digit (4) from the dividend, add it to 35, then carry on: 354 / 639

Advancing to step 3:
639 goes into 354 0 times with a remainder of 354.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 354 leaves us with 354.
Fetch the next digit (4) from the dividend, attach it to 354 and continue: 3544 / 639

On to step 4:
3544 divided by 639 is 5 with a remainder of 349.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 3195 from 3544 leaves us with 349.
Grab the next digit (4) from the dividend, add it to 349, then carry on: 3494 / 639

Going ahead to step 5:
The number 639 fits into 3494 5 times, leaving a remainder of 299.
Put 5 as the next digit of the answer. 
Result so far: 55.0
If we subtract 3195 from 3494, we get 299.
Include the next digit (4) from the dividend after 299, then repeat: 2994 / 639

Going ahead to step 6:
639 goes into 2994 4 times with a remainder of 438.
The next digit of our result is 4. 
Result so far: 554.0
If we subtract 2556 from 2994, we get 438.
Fetch the next digit (6) from the dividend, attach it to 438 and continue: 4386 / 639

Step 7:
4386 divided by 639 is 6 with a remainder of 552.
The next digit of our result is 6. 
Result so far: 5546.0
Subtracting 3834 from 4386 leaves us with 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Moving on to step 8:
5520 divided by 639 is 8 with a remainder of 408.
Record the quotient 8 as the next digit in the result. 
Result so far: 5546.8
If we take 5112 away from 5520, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Let's proceed to step 9:
The number 639 fits into 4080 6 times, leaving a remainder of 246.
Use 6 as the next digit of our solution. 
Result so far: 5546.86
Deduct 3834 from 4080 and we're left with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Advancing to step 10:
The number 639 fits into 2460 3 times, leaving a remainder of 543.
Put 3 as the next digit of the answer. 
Result so far: 5546.863
If we take 1917 away from 2460, we end up with 543.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5430, and continue the process.

Going ahead to step 11:
639 can be fit into 5430 8 times, resulting in a remainder of 318.
The next digit of our result is 8. 
Result so far: 5546.8638
If we subtract 5112 from 5430, we get 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Moving on to step 12:
The number 639 fits into 3180 4 times, leaving a remainder of 624.
Use 4 as the next digit of our solution. 
Result so far: 5546.86384
Deduct 2556 from 3180 and we're left with 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

On to step 13:
If we divide 6240 by 639, we get 9 and a remainder of 489.
Write down 9 as next digit of the result. 
Result so far: 5546.863849
Subtract 5751 from 6240 to get 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Moving on to step 14:
4890 divided by 639 is 7 with a remainder of 417.
Write down 7 as next digit of the result. 
Result so far: 5546.8638497
Subtract 4473 from 4890 to get 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

Step 15:
639 can be fit into 4170 6 times, resulting in a remainder of 336.
Use 6 as the next digit of our solution. 
Result so far: 5546.86384976
If we take 3834 away from 4170, we end up with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

The final outcome is 5546.86384976, with a leftover of 3.36e-07.