Let's divide 12557809 by 722
The aim is to understand the frequency of 722 in 12557809.

Going ahead to step 1:
If we divide 1 by 722, we get 0 and a remainder of 1.
Write down 0 as next digit of the 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 / 722

Step 2:
If we divide 12 by 722, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Grab the next digit (5) from the dividend, add it to 12, then carry on: 125 / 722

Moving on to step 3:
The number 722 fits into 125 0 times, leaving a remainder of 125.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 125 leaves us with 125.
Append the next digit (5) from the dividend to 125 and continue with: 1255 / 722

Going ahead to step 4:
1255 divided by 722 is 1 with a remainder of 533.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 722 from 1255 to get 533.
Append the next digit (7) from the dividend to 533 and continue with: 5337 / 722

On to step 5:
5337 divided by 722 is 7 with a remainder of 283.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we subtract 5054 from 5337, we get 283.
Fetch the next digit (8) from the dividend, attach it to 283 and continue: 2838 / 722

Moving on to step 6:
If we divide 2838 by 722, we get 3 and a remainder of 672.
Put 3 as the next digit of the answer. 
Result so far: 173.0
If we subtract 2166 from 2838, we get 672.
Bring next digit (0) of the dividend behind the 672 and repeat the process: 6720 / 722

Moving on to step 7:
6720 divided by 722 is 9 with a remainder of 222.
Use 9 as the next digit of our solution. 
Result so far: 1739.0
If we subtract 6498 from 6720, we get 222.
Bring next digit (9) of the dividend behind the 222 and repeat the process: 2229 / 722

Going ahead to step 8:
When dividing 2229 by 722, we get 3 with a remainder of 63.
Use 3 as the next digit of our solution. 
Result so far: 17393.0
If we subtract 2166 from 2229, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 9:
When dividing 630 by 722, we get 0 with a remainder of 630.
The number 0 becomes the next digit in our result. 
Result so far: 17393.0
If we subtract 0 from 630, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Going ahead to step 10:
6300 divided by 722 is 8 with a remainder of 524.
Use 8 as the next digit of our solution. 
Result so far: 17393.08
Subtracting 5776 from 6300 leaves us with 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Going ahead to step 11:
5240 divided by 722 is 7 with a remainder of 186.
Record the quotient 7 as the next digit in the result. 
Result so far: 17393.087
Subtract 5054 from 5240 to get 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Advancing to step 12:
722 goes into 1860 2 times with a remainder of 416.
Record the quotient 2 as the next digit in the result. 
Result so far: 17393.0872
Subtracting 1444 from 1860 leaves us with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Moving on to step 13:
When dividing 4160 by 722, we get 5 with a remainder of 550.
The next digit of our result is 5. 
Result so far: 17393.08725
The remainder is 550 after subtracting 3610 from 4160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Let's proceed to step 14:
If we divide 5500 by 722, we get 7 and a remainder of 446.
Use 7 as the next digit of our solution. 
Result so far: 17393.087257
If we take 5054 away from 5500, we end up with 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

On to step 15:
722 can be fit into 4460 6 times, resulting in a remainder of 128.
The next digit of our result is 6. 
Result so far: 17393.0872576
If we subtract 4332 from 4460, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 16:
722 goes into 1280 1 times with a remainder of 558.
Write down 1 as next digit of the result. 
Result so far: 17393.08725761
If we subtract 722 from 1280, we get 558.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

After the division, we end up with 17393.08725761 and a remainder of 5.58e-07.