12573782 divided by 266 
The aim is to understand the frequency of 266 in 12573782.

Advancing to step 1:
1 divided by 266 is 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.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 266

Step 2:
The number 266 fits into 12 0 times, leaving a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Fetch the next digit (5) from the dividend, attach it to 12 and continue: 125 / 266

Advancing to step 3:
The number 266 fits into 125 0 times, leaving a remainder of 125.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 125 to get 125.
Grab the next digit (7) from the dividend, add it to 125, then carry on: 1257 / 266

Going ahead to step 4:
1257 divided by 266 is 4 with a remainder of 193.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 193 after subtracting 1064 from 1257.
Fetch the next digit (3) from the dividend, attach it to 193 and continue: 1933 / 266

Let's proceed to step 5:
If we divide 1933 by 266, we get 7 and a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 47.0
Subtract 1862 from 1933 to get 71.
Grab the next digit (7) from the dividend, add it to 71, then carry on: 717 / 266

Let's proceed to step 6:
If we divide 717 by 266, we get 2 and a remainder of 185.
The number 2 becomes the next digit in our result. 
Result so far: 472.0
Subtract 532 from 717 to get 185.
Include the next digit (8) from the dividend after 185, then repeat: 1858 / 266

Moving on to step 7:
If we divide 1858 by 266, we get 6 and a remainder of 262.
Put 6 as the next digit of the answer. 
Result so far: 4726.0
Subtracting 1596 from 1858 leaves us with 262.
Bring next digit (2) of the dividend behind the 262 and repeat the process: 2622 / 266

Step 8:
266 goes into 2622 9 times with a remainder of 228.
The number 9 becomes the next digit in our result. 
Result so far: 47269.0
The remainder is 228 after subtracting 2394 from 2622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Let's proceed to step 9:
When dividing 2280 by 266, we get 8 with a remainder of 152.
Put 8 as the next digit of the answer. 
Result so far: 47269.8
Deduct 2128 from 2280 and we're left with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

On to step 10:
When dividing 1520 by 266, we get 5 with a remainder of 190.
Write down 5 as next digit of the result. 
Result so far: 47269.85
The remainder is 190 after subtracting 1330 from 1520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 11:
The number 266 fits into 1900 7 times, leaving a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 47269.857
Deduct 1862 from 1900 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 12:
266 can be fit into 380 1 times, resulting in a remainder of 114.
Put 1 as the next digit of the answer. 
Result so far: 47269.8571
Deduct 266 from 380 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.

Step 13:
The number 266 fits into 1140 4 times, leaving a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 47269.85714
If we subtract 1064 from 1140, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 14:
760 divided by 266 is 2 with a remainder of 228.
The next digit of our result is 2. 
Result so far: 47269.857142
Subtracting 532 from 760 leaves us with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Going ahead to step 15:
266 goes into 2280 8 times with a remainder of 152.
Write down 8 as next digit of the result. 
Result so far: 47269.8571428
If we subtract 2128 from 2280, we get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 16:
1520 divided by 266 is 5 with a remainder of 190.
The number 5 becomes the next digit in our result. 
Result so far: 47269.85714285
Deduct 1330 from 1520 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

The final outcome is 47269.85714285, with a leftover of 1.9e-07.