9185187 divided by 639 
We want to divide 9185187 by 639.

Moving on to step 1:
9 divided by 639 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 639

Going ahead to step 2:
When dividing 91 by 639, we get 0 with a remainder of 91.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Append the next digit (8) from the dividend to 91 and continue with: 918 / 639

Step 3:
If we divide 918 by 639, we get 1 and a remainder of 279.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 639 from 918, we get 279.
Include the next digit (5) from the dividend after 279, then repeat: 2795 / 639

On to step 4:
If we divide 2795 by 639, we get 4 and a remainder of 239.
Use 4 as the next digit of our solution. 
Result so far: 14.0
If we subtract 2556 from 2795, we get 239.
Bring next digit (1) of the dividend behind the 239 and repeat the process: 2391 / 639

Step 5:
When dividing 2391 by 639, we get 3 with a remainder of 474.
Record the quotient 3 as the next digit in the result. 
Result so far: 143.0
If we take 1917 away from 2391, we end up with 474.
Fetch the next digit (8) from the dividend, attach it to 474 and continue: 4748 / 639

Let's proceed to step 6:
639 can be fit into 4748 7 times, resulting in a remainder of 275.
The number 7 becomes the next digit in our result. 
Result so far: 1437.0
The remainder is 275 after subtracting 4473 from 4748.
Take the next digit (7) from the dividend and append it to 275, then repeat: 2757 / 639

Step 7:
2757 divided by 639 is 4 with a remainder of 201.
The next digit of our result is 4. 
Result so far: 14374.0
If we take 2556 away from 2757, we end up with 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Step 8:
639 can be fit into 2010 3 times, resulting in a remainder of 93.
The number 3 becomes the next digit in our result. 
Result so far: 14374.3
Subtracting 1917 from 2010 leaves us with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Advancing to step 9:
The number 639 fits into 930 1 times, leaving a remainder of 291.
The next digit of our result is 1. 
Result so far: 14374.31
If we take 639 away from 930, we end up with 291.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

On to step 10:
The number 639 fits into 2910 4 times, leaving a remainder of 354.
The next digit of our result is 4. 
Result so far: 14374.314
If we take 2556 away from 2910, we end up with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Advancing to step 11:
If we divide 3540 by 639, we get 5 and a remainder of 345.
Record the quotient 5 as the next digit in the result. 
Result so far: 14374.3145
Subtract 3195 from 3540 to get 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Moving on to step 12:
639 goes into 3450 5 times with a remainder of 255.
Use 5 as the next digit of our solution. 
Result so far: 14374.31455
If we subtract 3195 from 3450, we get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

The final outcome is 14374.31455, with a leftover of 0.000255.