We look at the division of 73490732 by 639 
We're looking to find how many times 639 goes into 73490732.

Moving on to step 1:
7 divided by 639 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 639

Step 2:
639 goes into 73 0 times with a remainder of 73.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 73 and we're left with 73.
Include the next digit (4) from the dividend after 73, then repeat: 734 / 639

On to step 3:
639 goes into 734 1 times with a remainder of 95.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 639 from 734 and we're left with 95.
Append the next digit (9) from the dividend to 95 and continue with: 959 / 639

Going ahead to step 4:
639 goes into 959 1 times with a remainder of 320.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we subtract 639 from 959, we get 320.
Take the next digit (0) from the dividend and append it to 320, then repeat: 3200 / 639

Moving on to step 5:
When dividing 3200 by 639, we get 5 with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 115.0
The remainder is 5 after subtracting 3195 from 3200.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 639

On to step 6:
57 divided by 639 is 0 with a remainder of 57.
Use 0 as the next digit of our solution. 
Result so far: 1150.0
The remainder is 57 after subtracting 0 from 57.
Grab the next digit (3) from the dividend, add it to 57, then carry on: 573 / 639

On to step 7:
639 can be fit into 573 0 times, resulting in a remainder of 573.
Record the quotient 0 as the next digit in the result. 
Result so far: 11500.0
Subtracting 0 from 573 leaves us with 573.
Take the next digit (2) from the dividend and append it to 573, then repeat: 5732 / 639

Let's proceed to step 8:
When dividing 5732 by 639, we get 8 with a remainder of 620.
Record the quotient 8 as the next digit in the result. 
Result so far: 115008.0
If we subtract 5112 from 5732, we get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Moving on to step 9:
If we divide 6200 by 639, we get 9 and a remainder of 449.
Write down 9 as next digit of the result. 
Result so far: 115008.9
Deduct 5751 from 6200 and we're left with 449.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4490, and continue the process.

Moving on to step 10:
4490 divided by 639 is 7 with a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 115008.97
If we subtract 4473 from 4490, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 11:
639 goes into 170 0 times with a remainder of 170.
The next digit of our result is 0. 
Result so far: 115008.97
Subtract 0 from 170 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 12:
639 goes into 1700 2 times with a remainder of 422.
Write down 2 as next digit of the result. 
Result so far: 115008.9702
Subtract 1278 from 1700 to get 422.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

On to step 13:
639 goes into 4220 6 times with a remainder of 386.
Use 6 as the next digit of our solution. 
Result so far: 115008.97026
Subtract 3834 from 4220 to get 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Going ahead to step 14:
639 goes into 3860 6 times with a remainder of 26.
Record the quotient 6 as the next digit in the result. 
Result so far: 115008.970266
Subtract 3834 from 3860 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

After the division, we end up with 115008.970266 and a remainder of 2.6e-06.