30413618 ÷ 408 
The aim is to understand the frequency of 408 in 30413618.

Advancing to step 1:
408 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 408

On to step 2:
If we divide 30 by 408, we get 0 and a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Include the next digit (4) from the dividend after 30, then repeat: 304 / 408

Let's proceed to step 3:
If we divide 304 by 408, we get 0 and a remainder of 304.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 304, we get 304.
Include the next digit (1) from the dividend after 304, then repeat: 3041 / 408

Step 4:
When dividing 3041 by 408, we get 7 with a remainder of 185.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 2856 from 3041 and we're left with 185.
Bring next digit (3) of the dividend behind the 185 and repeat the process: 1853 / 408

On to step 5:
408 can be fit into 1853 4 times, resulting in a remainder of 221.
Write down 4 as next digit of the result. 
Result so far: 74.0
If we take 1632 away from 1853, we end up with 221.
Take the next digit (6) from the dividend and append it to 221, then repeat: 2216 / 408

Advancing to step 6:
The number 408 fits into 2216 5 times, leaving a remainder of 176.
Record the quotient 5 as the next digit in the result. 
Result so far: 745.0
The remainder is 176 after subtracting 2040 from 2216.
Take the next digit (1) from the dividend and append it to 176, then repeat: 1761 / 408

Moving on to step 7:
The number 408 fits into 1761 4 times, leaving a remainder of 129.
The next digit of our result is 4. 
Result so far: 7454.0
If we subtract 1632 from 1761, we get 129.
Grab the next digit (8) from the dividend, add it to 129, then carry on: 1298 / 408

Moving on to step 8:
The number 408 fits into 1298 3 times, leaving a remainder of 74.
The number 3 becomes the next digit in our result. 
Result so far: 74543.0
Subtracting 1224 from 1298 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 9:
When dividing 740 by 408, we get 1 with a remainder of 332.
Use 1 as the next digit of our solution. 
Result so far: 74543.1
Subtract 408 from 740 to get 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Let's proceed to step 10:
When dividing 3320 by 408, we get 8 with a remainder of 56.
Use 8 as the next digit of our solution. 
Result so far: 74543.18
Subtracting 3264 from 3320 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 11:
408 can be fit into 560 1 times, resulting in a remainder of 152.
Use 1 as the next digit of our solution. 
Result so far: 74543.181
If we subtract 408 from 560, 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.

Moving on to step 12:
If we divide 1520 by 408, we get 3 and a remainder of 296.
The number 3 becomes the next digit in our result. 
Result so far: 74543.1813
Subtracting 1224 from 1520 leaves us with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Advancing to step 13:
408 goes into 2960 7 times with a remainder of 104.
Use 7 as the next digit of our solution. 
Result so far: 74543.18137
The remainder is 104 after subtracting 2856 from 2960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Step 14:
1040 divided by 408 is 2 with a remainder of 224.
Record the quotient 2 as the next digit in the result. 
Result so far: 74543.181372
Subtracting 816 from 1040 leaves us with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Going ahead to step 15:
When dividing 2240 by 408, we get 5 with a remainder of 200.
Put 5 as the next digit of the answer. 
Result so far: 74543.1813725
Deduct 2040 from 2240 and we're left 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 16:
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: 74543.18137254
Subtracting 1632 from 2000 leaves us 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.

The quotient of the division is 74543.18137254, and the remainder is 3.68e-07.