53217397 ÷ 13 
Let's see how many times 13 fits into 53217397.

Advancing to step 1:
When dividing 5 by 13, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 13

Let's proceed to step 2:
53 divided by 13 is 4 with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 52 away from 53, we end up with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 13

Step 3:
When dividing 12 by 13, we get 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 40.0
If we take 0 away from 12, we end up with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 13

Moving on to step 4:
13 goes into 121 9 times with a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 409.0
Subtract 117 from 121 to get 4.
Include the next digit (7) from the dividend after 4, then repeat: 47 / 13

Step 5:
47 divided by 13 is 3 with a remainder of 8.
The next digit of our result is 3. 
Result so far: 4093.0
Deduct 39 from 47 and we're left with 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 13

Step 6:
If we divide 83 by 13, we get 6 and a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 40936.0
The remainder is 5 after subtracting 78 from 83.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 13

Advancing to step 7:
13 can be fit into 59 4 times, resulting in a remainder of 7.
The number 4 becomes the next digit in our result. 
Result so far: 409364.0
If we subtract 52 from 59, we get 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 13

Let's proceed to step 8:
13 goes into 77 5 times with a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 4093645.0
If we subtract 65 from 77, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 9:
120 divided by 13 is 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 4093645.9
Subtracting 117 from 120 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 10:
13 goes into 30 2 times with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 4093645.92
Deduct 26 from 30 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 11:
If we divide 40 by 13, we get 3 and a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 4093645.923
If we subtract 39 from 40, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 12:
13 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 4093645.923
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 13:
If we divide 100 by 13, we get 7 and a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 4093645.92307
Deduct 91 from 100 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 14:
13 can be fit into 90 6 times, resulting in a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 4093645.923076
If we subtract 78 from 90, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 15:
120 divided by 13 is 9 with a remainder of 3.
The next digit of our result is 9. 
Result so far: 4093645.9230769
Subtract 117 from 120 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 16:
The number 13 fits into 30 2 times, leaving a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 4093645.92307692
If we subtract 26 from 30, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 4093645.92307692, and the remainder is 4e-09.