We look at the division of 61640597 by 304 
The aim is to understand the frequency of 304 in 61640597.

On to step 1:
When dividing 6 by 304, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 304

Going ahead to step 2:
When dividing 61 by 304, we get 0 with a remainder of 61.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 61 to get 61.
Fetch the next digit (6) from the dividend, attach it to 61 and continue: 616 / 304

Going ahead to step 3:
616 divided by 304 is 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 608 from 616 to get 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 304

On to step 4:
The number 304 fits into 84 0 times, leaving a remainder of 84.
Put 0 as the next digit of the answer. 
Result so far: 20.0
Deduct 0 from 84 and we're left with 84.
Fetch the next digit (0) from the dividend, attach it to 84 and continue: 840 / 304

Moving on to step 5:
304 goes into 840 2 times with a remainder of 232.
Put 2 as the next digit of the answer. 
Result so far: 202.0
Subtract 608 from 840 to get 232.
Append the next digit (5) from the dividend to 232 and continue with: 2325 / 304

Advancing to step 6:
When dividing 2325 by 304, we get 7 with a remainder of 197.
Put 7 as the next digit of the answer. 
Result so far: 2027.0
Deduct 2128 from 2325 and we're left with 197.
Grab the next digit (9) from the dividend, add it to 197, then carry on: 1979 / 304

Step 7:
The number 304 fits into 1979 6 times, leaving a remainder of 155.
The number 6 becomes the next digit in our result. 
Result so far: 20276.0
The remainder is 155 after subtracting 1824 from 1979.
Include the next digit (7) from the dividend after 155, then repeat: 1557 / 304

Advancing to step 8:
1557 divided by 304 is 5 with a remainder of 37.
Write down 5 as next digit of the result. 
Result so far: 202765.0
The remainder is 37 after subtracting 1520 from 1557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 9:
If we divide 370 by 304, we get 1 and a remainder of 66.
The next digit of our result is 1. 
Result so far: 202765.1
Deduct 304 from 370 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 10:
304 can be fit into 660 2 times, resulting in a remainder of 52.
The next digit of our result is 2. 
Result so far: 202765.12
Deduct 608 from 660 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 304 fits into 520 1 times, leaving a remainder of 216.
The number 1 becomes the next digit in our result. 
Result so far: 202765.121
If we take 304 away from 520, we end up with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

On to step 12:
If we divide 2160 by 304, we get 7 and a remainder of 32.
Record the quotient 7 as the next digit in the result. 
Result so far: 202765.1217
The remainder is 32 after subtracting 2128 from 2160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 13:
304 can be fit into 320 1 times, resulting in a remainder of 16.
The next digit of our result is 1. 
Result so far: 202765.12171
Deduct 304 from 320 and we're left with 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 14:
160 divided by 304 is 0 with a remainder of 160.
The number 0 becomes the next digit in our result. 
Result so far: 202765.12171
If we subtract 0 from 160, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 15:
The number 304 fits into 1600 5 times, leaving a remainder of 80.
Write down 5 as next digit of the result. 
Result so far: 202765.1217105
If we take 1520 away from 1600, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 16:
304 goes into 800 2 times with a remainder of 192.
Write down 2 as next digit of the result. 
Result so far: 202765.12171052
Subtract 608 from 800 to get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

After the division, we end up with 202765.12171052 and a remainder of 1.92e-07.