We're dividing 47343993 by 639 
Our goal is to divide 47343993 by 639.

On to step 1:
The number 639 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 639

On to step 2:
If we divide 47 by 639, we get 0 and a remainder of 47.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 47, we end up with 47.
Include the next digit (3) from the dividend after 47, then repeat: 473 / 639

Let's proceed to step 3:
639 can be fit into 473 0 times, resulting in a remainder of 473.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 473 after subtracting 0 from 473.
Fetch the next digit (4) from the dividend, attach it to 473 and continue: 4734 / 639

Moving on to step 4:
639 can be fit into 4734 7 times, resulting in a remainder of 261.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 4473 away from 4734, we end up with 261.
Bring next digit (3) of the dividend behind the 261 and repeat the process: 2613 / 639

On to step 5:
639 goes into 2613 4 times with a remainder of 57.
The number 4 becomes the next digit in our result. 
Result so far: 74.0
Subtracting 2556 from 2613 leaves us with 57.
Append the next digit (9) from the dividend to 57 and continue with: 579 / 639

Advancing to step 6:
When dividing 579 by 639, we get 0 with a remainder of 579.
The number 0 becomes the next digit in our result. 
Result so far: 740.0
Deduct 0 from 579 and we're left with 579.
Grab the next digit (9) from the dividend, add it to 579, then carry on: 5799 / 639

Moving on to step 7:
If we divide 5799 by 639, we get 9 and a remainder of 48.
Record the quotient 9 as the next digit in the result. 
Result so far: 7409.0
Subtract 5751 from 5799 to get 48.
Include the next digit (3) from the dividend after 48, then repeat: 483 / 639

Let's proceed to step 8:
483 divided by 639 is 0 with a remainder of 483.
Use 0 as the next digit of our solution. 
Result so far: 74090.0
Deduct 0 from 483 and we're left with 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Going ahead to step 9:
The number 639 fits into 4830 7 times, leaving a remainder of 357.
The number 7 becomes the next digit in our result. 
Result so far: 74090.7
Deduct 4473 from 4830 and we're left with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Moving on to step 10:
When dividing 3570 by 639, we get 5 with a remainder of 375.
Record the quotient 5 as the next digit in the result. 
Result so far: 74090.75
Subtract 3195 from 3570 to get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

On to step 11:
When dividing 3750 by 639, we get 5 with a remainder of 555.
Record the quotient 5 as the next digit in the result. 
Result so far: 74090.755
Deduct 3195 from 3750 and we're left with 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

The final result is 74090.755 with a remainder of 0.0555.