2540907 ÷ 597 
The aim is to understand the frequency of 597 in 2540907.

Let's proceed to step 1:
If we divide 2 by 597, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 597

Advancing to step 2:
The number 597 fits into 25 0 times, leaving a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Fetch the next digit (4) from the dividend, attach it to 25 and continue: 254 / 597

On to step 3:
If we divide 254 by 597, we get 0 and a remainder of 254.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 254, we get 254.
Grab the next digit (0) from the dividend, add it to 254, then carry on: 2540 / 597

Going ahead to step 4:
2540 divided by 597 is 4 with a remainder of 152.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 2388 from 2540 to get 152.
Include the next digit (9) from the dividend after 152, then repeat: 1529 / 597

Let's proceed to step 5:
597 can be fit into 1529 2 times, resulting in a remainder of 335.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
If we take 1194 away from 1529, we end up with 335.
Include the next digit (0) from the dividend after 335, then repeat: 3350 / 597

Let's proceed to step 6:
597 can be fit into 3350 5 times, resulting in a remainder of 365.
Put 5 as the next digit of the answer. 
Result so far: 425.0
The remainder is 365 after subtracting 2985 from 3350.
Include the next digit (7) from the dividend after 365, then repeat: 3657 / 597

Moving on to step 7:
When dividing 3657 by 597, we get 6 with a remainder of 75.
The number 6 becomes the next digit in our result. 
Result so far: 4256.0
Deduct 3582 from 3657 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 8:
597 can be fit into 750 1 times, resulting in a remainder of 153.
Put 1 as the next digit of the answer. 
Result so far: 4256.1
If we subtract 597 from 750, we get 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

On to step 9:
The number 597 fits into 1530 2 times, leaving a remainder of 336.
The number 2 becomes the next digit in our result. 
Result so far: 4256.12
The remainder is 336 after subtracting 1194 from 1530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Advancing to step 10:
597 goes into 3360 5 times with a remainder of 375.
The number 5 becomes the next digit in our result. 
Result so far: 4256.125
If we take 2985 away from 3360, we end up with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Going ahead to step 11:
3750 divided by 597 is 6 with a remainder of 168.
Record the quotient 6 as the next digit in the result. 
Result so far: 4256.1256
If we subtract 3582 from 3750, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 12:
1680 divided by 597 is 2 with a remainder of 486.
Use 2 as the next digit of our solution. 
Result so far: 4256.12562
Subtracting 1194 from 1680 leaves us with 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

On to step 13:
597 can be fit into 4860 8 times, resulting in a remainder of 84.
The next digit of our result is 8. 
Result so far: 4256.125628
The remainder is 84 after subtracting 4776 from 4860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 14:
The number 597 fits into 840 1 times, leaving a remainder of 243.
Put 1 as the next digit of the answer. 
Result so far: 4256.1256281
Deduct 597 from 840 and we're left with 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

Advancing to step 15:
If we divide 2430 by 597, we get 4 and a remainder of 42.
Put 4 as the next digit of the answer. 
Result so far: 4256.12562814
Subtracting 2388 from 2430 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

The final result is 4256.12562814 with a remainder of 4.2e-08.