We're dividing 30707000 by 408 
The aim is to understand the frequency of 408 in 30707000.

Advancing to step 1:
3 divided by 408 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 408

On to step 2:
The number 408 fits into 30 0 times, leaving a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Append the next digit (7) from the dividend to 30 and continue with: 307 / 408

On to step 3:
If we divide 307 by 408, we get 0 and a remainder of 307.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 307 leaves us with 307.
Append the next digit (0) from the dividend to 307 and continue with: 3070 / 408

Let's proceed to step 4:
408 goes into 3070 7 times with a remainder of 214.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Deduct 2856 from 3070 and we're left with 214.
Append the next digit (7) from the dividend to 214 and continue with: 2147 / 408

Step 5:
2147 divided by 408 is 5 with a remainder of 107.
Use 5 as the next digit of our solution. 
Result so far: 75.0
The remainder is 107 after subtracting 2040 from 2147.
Include the next digit (0) from the dividend after 107, then repeat: 1070 / 408

Step 6:
The number 408 fits into 1070 2 times, leaving a remainder of 254.
Use 2 as the next digit of our solution. 
Result so far: 752.0
Deduct 816 from 1070 and we're left with 254.
Grab the next digit (0) from the dividend, add it to 254, then carry on: 2540 / 408

On to step 7:
If we divide 2540 by 408, we get 6 and a remainder of 92.
The number 6 becomes the next digit in our result. 
Result so far: 7526.0
If we subtract 2448 from 2540, we get 92.
Grab the next digit (0) from the dividend, add it to 92, then carry on: 920 / 408

Going ahead to step 8:
408 can be fit into 920 2 times, resulting in a remainder of 104.
Use 2 as the next digit of our solution. 
Result so far: 75262.0
The remainder is 104 after subtracting 816 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Going ahead to step 9:
408 can be fit into 1040 2 times, resulting in a remainder of 224.
Record the quotient 2 as the next digit in the result. 
Result so far: 75262.2
The remainder is 224 after subtracting 816 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Step 10:
If we divide 2240 by 408, we get 5 and a remainder of 200.
The next digit of our result is 5. 
Result so far: 75262.25
If we take 2040 away from 2240, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 11:
408 goes into 2000 4 times with a remainder of 368.
Record the quotient 4 as the next digit in the result. 
Result so far: 75262.254
Deduct 1632 from 2000 and we're left with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Advancing to step 12:
The number 408 fits into 3680 9 times, leaving a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 75262.2549
Deduct 3672 from 3680 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 13:
80 divided by 408 is 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 75262.2549
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 14:
If we divide 800 by 408, we get 1 and a remainder of 392.
Record the quotient 1 as the next digit in the result. 
Result so far: 75262.254901
The remainder is 392 after subtracting 408 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Step 15:
When dividing 3920 by 408, we get 9 with a remainder of 248.
The number 9 becomes the next digit in our result. 
Result so far: 75262.2549019
If we subtract 3672 from 3920, we get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

On to step 16:
2480 divided by 408 is 6 with a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 75262.25490196
If we take 2448 away from 2480, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 75262.25490196 with a remainder of 3.2e-08.