4250553 divided by 13 
The aim is to understand the frequency of 13 in 4250553.

Step 1:
4 divided by 13 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 13

On to step 2:
When dividing 42 by 13, we get 3 with a remainder of 3.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 3 after subtracting 39 from 42.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 13

Advancing to step 3:
13 goes into 35 2 times with a remainder of 9.
The next digit of our result is 2. 
Result so far: 32.0
If we subtract 26 from 35, we get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 13

Let's proceed to step 4:
If we divide 90 by 13, we get 6 and a remainder of 12.
The next digit of our result is 6. 
Result so far: 326.0
If we take 78 away from 90, we end up with 12.
Append the next digit (5) from the dividend to 12 and continue with: 125 / 13

Advancing to step 5:
If we divide 125 by 13, we get 9 and a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 3269.0
Deduct 117 from 125 and we're left with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 13

Advancing to step 6:
13 can be fit into 85 6 times, resulting in a remainder of 7.
Put 6 as the next digit of the answer. 
Result so far: 32696.0
Subtracting 78 from 85 leaves us with 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 13

Advancing to step 7:
If we divide 73 by 13, we get 5 and a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 326965.0
If we take 65 away from 73, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
When dividing 80 by 13, we get 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 326965.6
Subtract 78 from 80 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 9:
If we divide 20 by 13, we get 1 and a remainder of 7.
The next digit of our result is 1. 
Result so far: 326965.61
Deduct 13 from 20 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 10:
13 goes into 70 5 times with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 326965.615
Deduct 65 from 70 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 11:
The number 13 fits into 50 3 times, leaving a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 326965.6153
If we subtract 39 from 50, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 12:
If we divide 110 by 13, we get 8 and a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 326965.61538
If we subtract 104 from 110, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 13:
The number 13 fits into 60 4 times, leaving a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 326965.615384
Deduct 52 from 60 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 14:
If we divide 80 by 13, we get 6 and a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 326965.6153846
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 15:
13 goes into 20 1 times with a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 326965.61538461
Deduct 13 from 20 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

In conclusion, the division gives 326965.61538461 with a balance of 7e-09.