We look at the division of 3289371 by 126 
The aim is to understand the frequency of 126 in 3289371.

On to step 1:
126 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 126

Moving on to step 2:
When dividing 32 by 126, we get 0 with a remainder of 32.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 32 after subtracting 0 from 32.
Include the next digit (8) from the dividend after 32, then repeat: 328 / 126

Advancing to step 3:
328 divided by 126 is 2 with a remainder of 76.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 252 from 328 leaves us with 76.
Bring next digit (9) of the dividend behind the 76 and repeat the process: 769 / 126

Step 4:
When dividing 769 by 126, we get 6 with a remainder of 13.
The next digit of our result is 6. 
Result so far: 26.0
Deduct 756 from 769 and we're left with 13.
Take the next digit (3) from the dividend and append it to 13, then repeat: 133 / 126

Advancing to step 5:
When dividing 133 by 126, we get 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 261.0
If we take 126 away from 133, we end up with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 126

Let's proceed to step 6:
77 divided by 126 is 0 with a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 2610.0
Deduct 0 from 77 and we're left with 77.
Bring next digit (1) of the dividend behind the 77 and repeat the process: 771 / 126

Advancing to step 7:
The number 126 fits into 771 6 times, leaving a remainder of 15.
The next digit of our result is 6. 
Result so far: 26106.0
If we take 756 away from 771, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
The number 126 fits into 150 1 times, leaving a remainder of 24.
The next digit of our result is 1. 
Result so far: 26106.1
If we subtract 126 from 150, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 9:
The number 126 fits into 240 1 times, leaving a remainder of 114.
Record the quotient 1 as the next digit in the result. 
Result so far: 26106.11
Deduct 126 from 240 and we're left with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Our division results in 26106.11 with a remaining 0.114.