We look at the division of 12560137 by 432 
The aim is to understand the frequency of 432 in 12560137.

On to step 1:
When dividing 1 by 432, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 432

Advancing to step 2:
432 can be fit into 12 0 times, resulting in a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 432

Moving on to step 3:
432 can be fit into 125 0 times, resulting in a remainder of 125.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 125 leaves us with 125.
Grab the next digit (6) from the dividend, add it to 125, then carry on: 1256 / 432

Moving on to step 4:
If we divide 1256 by 432, we get 2 and a remainder of 392.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 864 from 1256 leaves us with 392.
Take the next digit (0) from the dividend and append it to 392, then repeat: 3920 / 432

Step 5:
432 can be fit into 3920 9 times, resulting in a remainder of 32.
Use 9 as the next digit of our solution. 
Result so far: 29.0
The remainder is 32 after subtracting 3888 from 3920.
Take the next digit (1) from the dividend and append it to 32, then repeat: 321 / 432

Advancing to step 6:
432 goes into 321 0 times with a remainder of 321.
Use 0 as the next digit of our solution. 
Result so far: 290.0
If we subtract 0 from 321, we get 321.
Bring next digit (3) of the dividend behind the 321 and repeat the process: 3213 / 432

Step 7:
The number 432 fits into 3213 7 times, leaving a remainder of 189.
The number 7 becomes the next digit in our result. 
Result so far: 2907.0
Subtract 3024 from 3213 to get 189.
Bring next digit (7) of the dividend behind the 189 and repeat the process: 1897 / 432

Going ahead to step 8:
If we divide 1897 by 432, we get 4 and a remainder of 169.
The number 4 becomes the next digit in our result. 
Result so far: 29074.0
If we subtract 1728 from 1897, we get 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Going ahead to step 9:
If we divide 1690 by 432, we get 3 and a remainder of 394.
Record the quotient 3 as the next digit in the result. 
Result so far: 29074.3
Subtracting 1296 from 1690 leaves us with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

On to step 10:
If we divide 3940 by 432, we get 9 and a remainder of 52.
Put 9 as the next digit of the answer. 
Result so far: 29074.39
Deduct 3888 from 3940 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 11:
The number 432 fits into 520 1 times, leaving a remainder of 88.
The number 1 becomes the next digit in our result. 
Result so far: 29074.391
If we subtract 432 from 520, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Step 12:
432 goes into 880 2 times with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 29074.3912
If we subtract 864 from 880, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 13:
160 divided by 432 is 0 with a remainder of 160.
Put 0 as the next digit of the answer. 
Result so far: 29074.3912
Subtracting 0 from 160 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 14:
When dividing 1600 by 432, we get 3 with a remainder of 304.
Record the quotient 3 as the next digit in the result. 
Result so far: 29074.391203
If we take 1296 away from 1600, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Advancing to step 15:
When dividing 3040 by 432, we get 7 with a remainder of 16.
Record the quotient 7 as the next digit in the result. 
Result so far: 29074.3912037
If we subtract 3024 from 3040, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 16:
If we divide 160 by 432, we get 0 and a remainder of 160.
The next digit of our result is 0. 
Result so far: 29074.3912037
Subtracting 0 from 160 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

After the division, we end up with 29074.3912037 and a remainder of 1.6e-07.