We're dividing 2690585 by 639 
We're looking to find how many times 639 goes into 2690585.

Going ahead to step 1:
When dividing 2 by 639, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 639

Moving on to step 2:
639 can be fit into 26 0 times, resulting in a remainder of 26.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 26, we get 26.
Take the next digit (9) from the dividend and append it to 26, then repeat: 269 / 639

Going ahead to step 3:
639 goes into 269 0 times with a remainder of 269.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 269 after subtracting 0 from 269.
Append the next digit (0) from the dividend to 269 and continue with: 2690 / 639

Step 4:
When dividing 2690 by 639, we get 4 with a remainder of 134.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 134 after subtracting 2556 from 2690.
Include the next digit (5) from the dividend after 134, then repeat: 1345 / 639

Step 5:
The number 639 fits into 1345 2 times, leaving a remainder of 67.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
The remainder is 67 after subtracting 1278 from 1345.
Fetch the next digit (8) from the dividend, attach it to 67 and continue: 678 / 639

Advancing to step 6:
678 divided by 639 is 1 with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 421.0
Subtracting 639 from 678 leaves us with 39.
Grab the next digit (5) from the dividend, add it to 39, then carry on: 395 / 639

On to step 7:
395 divided by 639 is 0 with a remainder of 395.
Put 0 as the next digit of the answer. 
Result so far: 4210.0
If we take 0 away from 395, we end up with 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Moving on to step 8:
The number 639 fits into 3950 6 times, leaving a remainder of 116.
Record the quotient 6 as the next digit in the result. 
Result so far: 4210.6
Deduct 3834 from 3950 and we're left with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Advancing to step 9:
If we divide 1160 by 639, we get 1 and a remainder of 521.
Put 1 as the next digit of the answer. 
Result so far: 4210.61
The remainder is 521 after subtracting 639 from 1160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5210, and continue the process.

On to step 10:
If we divide 5210 by 639, we get 8 and a remainder of 98.
Put 8 as the next digit of the answer. 
Result so far: 4210.618
The remainder is 98 after subtracting 5112 from 5210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Step 11:
639 can be fit into 980 1 times, resulting in a remainder of 341.
Use 1 as the next digit of our solution. 
Result so far: 4210.6181
If we take 639 away from 980, we end up with 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Step 12:
The number 639 fits into 3410 5 times, leaving a remainder of 215.
Write down 5 as next digit of the result. 
Result so far: 4210.61815
If we subtract 3195 from 3410, we get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Step 13:
When dividing 2150 by 639, we get 3 with a remainder of 233.
The next digit of our result is 3. 
Result so far: 4210.618153
Subtracting 1917 from 2150 leaves us with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Moving on to step 14:
2330 divided by 639 is 3 with a remainder of 413.
The number 3 becomes the next digit in our result. 
Result so far: 4210.6181533
If we subtract 1917 from 2330, we get 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

The final outcome is 4210.6181533, with a leftover of 4.13e-06.