53340901 ÷ 639 
Our goal is to divide 53340901 by 639.

Advancing to step 1:
When dividing 5 by 639, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 639

Let's proceed to step 2:
53 divided by 639 is 0 with a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 53, we end up with 53.
Bring next digit (3) of the dividend behind the 53 and repeat the process: 533 / 639

On to step 3:
533 divided by 639 is 0 with a remainder of 533.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 533 to get 533.
Append the next digit (4) from the dividend to 533 and continue with: 5334 / 639

Let's proceed to step 4:
The number 639 fits into 5334 8 times, leaving a remainder of 222.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we take 5112 away from 5334, we end up with 222.
Fetch the next digit (0) from the dividend, attach it to 222 and continue: 2220 / 639

Moving on to step 5:
The number 639 fits into 2220 3 times, leaving a remainder of 303.
The next digit of our result is 3. 
Result so far: 83.0
Subtracting 1917 from 2220 leaves us with 303.
Append the next digit (9) from the dividend to 303 and continue with: 3039 / 639

Advancing to step 6:
If we divide 3039 by 639, we get 4 and a remainder of 483.
Record the quotient 4 as the next digit in the result. 
Result so far: 834.0
If we subtract 2556 from 3039, we get 483.
Bring next digit (0) of the dividend behind the 483 and repeat the process: 4830 / 639

On to step 7:
639 goes into 4830 7 times with a remainder of 357.
Use 7 as the next digit of our solution. 
Result so far: 8347.0
Subtracting 4473 from 4830 leaves us with 357.
Bring next digit (1) of the dividend behind the 357 and repeat the process: 3571 / 639

Advancing to step 8:
3571 divided by 639 is 5 with a remainder of 376.
Use 5 as the next digit of our solution. 
Result so far: 83475.0
Subtracting 3195 from 3571 leaves us with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

On to step 9:
The number 639 fits into 3760 5 times, leaving a remainder of 565.
Record the quotient 5 as the next digit in the result. 
Result so far: 83475.5
The remainder is 565 after subtracting 3195 from 3760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

Step 10:
639 can be fit into 5650 8 times, resulting in a remainder of 538.
The number 8 becomes the next digit in our result. 
Result so far: 83475.58
Deduct 5112 from 5650 and we're left with 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Moving on to step 11:
The number 639 fits into 5380 8 times, leaving a remainder of 268.
Record the quotient 8 as the next digit in the result. 
Result so far: 83475.588
If we take 5112 away from 5380, we end up with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Our division results in 83475.588 with a remaining 0.0268.