Let's divide 48438557 by 639
We want to divide 48438557 by 639.

Let's proceed to step 1:
639 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (8) of the dividend behind the 4 and repeat the process: 48 / 639

On to step 2:
If we divide 48 by 639, we get 0 and a remainder of 48.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 48 after subtracting 0 from 48.
Grab the next digit (4) from the dividend, add it to 48, then carry on: 484 / 639

Let's proceed to step 3:
639 can be fit into 484 0 times, resulting in a remainder of 484.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 484 leaves us with 484.
Grab the next digit (3) from the dividend, add it to 484, then carry on: 4843 / 639

Moving on to step 4:
The number 639 fits into 4843 7 times, leaving a remainder of 370.
The next digit of our result is 7. 
Result so far: 7.0
Deduct 4473 from 4843 and we're left with 370.
Include the next digit (8) from the dividend after 370, then repeat: 3708 / 639

Advancing to step 5:
If we divide 3708 by 639, we get 5 and a remainder of 513.
The number 5 becomes the next digit in our result. 
Result so far: 75.0
If we subtract 3195 from 3708, we get 513.
Fetch the next digit (5) from the dividend, attach it to 513 and continue: 5135 / 639

On to step 6:
5135 divided by 639 is 8 with a remainder of 23.
Write down 8 as next digit of the result. 
Result so far: 758.0
Deduct 5112 from 5135 and we're left with 23.
Take the next digit (5) from the dividend and append it to 23, then repeat: 235 / 639

Advancing to step 7:
639 can be fit into 235 0 times, resulting in a remainder of 235.
Use 0 as the next digit of our solution. 
Result so far: 7580.0
If we take 0 away from 235, we end up with 235.
Fetch the next digit (7) from the dividend, attach it to 235 and continue: 2357 / 639

Moving on to step 8:
When dividing 2357 by 639, we get 3 with a remainder of 440.
The number 3 becomes the next digit in our result. 
Result so far: 75803.0
Deduct 1917 from 2357 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Moving on to step 9:
When dividing 4400 by 639, we get 6 with a remainder of 566.
The number 6 becomes the next digit in our result. 
Result so far: 75803.6
Subtracting 3834 from 4400 leaves us with 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

Advancing to step 10:
639 can be fit into 5660 8 times, resulting in a remainder of 548.
Write down 8 as next digit of the result. 
Result so far: 75803.68
Subtracting 5112 from 5660 leaves us with 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Let's proceed to step 11:
When dividing 5480 by 639, we get 8 with a remainder of 368.
The number 8 becomes the next digit in our result. 
Result so far: 75803.688
Subtract 5112 from 5480 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

The final outcome is 75803.688, with a leftover of 0.0368.