We look at the division of 16984894 by 639 
We're looking to find how many times 639 goes into 16984894.

On to step 1:
When dividing 1 by 639, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 639

Going ahead to step 2:
639 goes into 16 0 times with a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 16, we get 16.
Bring next digit (9) of the dividend behind the 16 and repeat the process: 169 / 639

On to step 3:
169 divided by 639 is 0 with a remainder of 169.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 169 after subtracting 0 from 169.
Append the next digit (8) from the dividend to 169 and continue with: 1698 / 639

On to step 4:
639 goes into 1698 2 times with a remainder of 420.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 1278 away from 1698, we end up with 420.
Append the next digit (4) from the dividend to 420 and continue with: 4204 / 639

Let's proceed to step 5:
When dividing 4204 by 639, we get 6 with a remainder of 370.
Use 6 as the next digit of our solution. 
Result so far: 26.0
If we take 3834 away from 4204, we end up with 370.
Append the next digit (8) from the dividend to 370 and continue with: 3708 / 639

On to step 6:
When dividing 3708 by 639, we get 5 with a remainder of 513.
The number 5 becomes the next digit in our result. 
Result so far: 265.0
The remainder is 513 after subtracting 3195 from 3708.
Fetch the next digit (9) from the dividend, attach it to 513 and continue: 5139 / 639

Going ahead to step 7:
5139 divided by 639 is 8 with a remainder of 27.
Write down 8 as next digit of the result. 
Result so far: 2658.0
Subtract 5112 from 5139 to get 27.
Fetch the next digit (4) from the dividend, attach it to 27 and continue: 274 / 639

Step 8:
639 can be fit into 274 0 times, resulting in a remainder of 274.
Put 0 as the next digit of the answer. 
Result so far: 26580.0
If we subtract 0 from 274, we get 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Moving on to step 9:
The number 639 fits into 2740 4 times, leaving a remainder of 184.
Write down 4 as next digit of the result. 
Result so far: 26580.4
Deduct 2556 from 2740 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 10:
The number 639 fits into 1840 2 times, leaving a remainder of 562.
Write down 2 as next digit of the result. 
Result so far: 26580.42
Subtract 1278 from 1840 to get 562.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5620, and continue the process.

Moving on to step 11:
639 can be fit into 5620 8 times, resulting in a remainder of 508.
Record the quotient 8 as the next digit in the result. 
Result so far: 26580.428
If we subtract 5112 from 5620, we get 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Let's proceed to step 12:
If we divide 5080 by 639, we get 7 and a remainder of 607.
The number 7 becomes the next digit in our result. 
Result so far: 26580.4287
If we subtract 4473 from 5080, we get 607.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6070, and continue the process.

Advancing to step 13:
639 can be fit into 6070 9 times, resulting in a remainder of 319.
Use 9 as the next digit of our solution. 
Result so far: 26580.42879
Deduct 5751 from 6070 and we're left with 319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

Advancing to step 14:
The number 639 fits into 3190 4 times, leaving a remainder of 634.
Use 4 as the next digit of our solution. 
Result so far: 26580.428794
The remainder is 634 after subtracting 2556 from 3190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6340, and continue the process.

Moving on to step 15:
639 goes into 6340 9 times with a remainder of 589.
Put 9 as the next digit of the answer. 
Result so far: 26580.4287949
If we subtract 5751 from 6340, we get 589.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5890, and continue the process.

Advancing to step 16:
5890 divided by 639 is 9 with a remainder of 139.
Write down 9 as next digit of the result. 
Result so far: 26580.42879499
Subtract 5751 from 5890 to get 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

After the division, we end up with 26580.42879499 and a remainder of 1.39e-07.