We look at the division of 52292124 by 408 
The aim is to understand the frequency of 408 in 52292124.

Advancing to step 1:
5 divided by 408 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 408

Moving on to step 2:
If we divide 52 by 408, we get 0 and a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 52 and we're left with 52.
Include the next digit (2) from the dividend after 52, then repeat: 522 / 408

Going ahead to step 3:
408 goes into 522 1 times with a remainder of 114.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 408 from 522 and we're left with 114.
Grab the next digit (9) from the dividend, add it to 114, then carry on: 1149 / 408

Let's proceed to step 4:
408 goes into 1149 2 times with a remainder of 333.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 816 from 1149, we get 333.
Fetch the next digit (2) from the dividend, attach it to 333 and continue: 3332 / 408

On to step 5:
If we divide 3332 by 408, we get 8 and a remainder of 68.
The next digit of our result is 8. 
Result so far: 128.0
Subtracting 3264 from 3332 leaves us with 68.
Fetch the next digit (1) from the dividend, attach it to 68 and continue: 681 / 408

Let's proceed to step 6:
408 goes into 681 1 times with a remainder of 273.
Record the quotient 1 as the next digit in the result. 
Result so far: 1281.0
Subtracting 408 from 681 leaves us with 273.
Include the next digit (2) from the dividend after 273, then repeat: 2732 / 408

Advancing to step 7:
When dividing 2732 by 408, we get 6 with a remainder of 284.
The next digit of our result is 6. 
Result so far: 12816.0
Deduct 2448 from 2732 and we're left with 284.
Fetch the next digit (4) from the dividend, attach it to 284 and continue: 2844 / 408

Let's proceed to step 8:
408 can be fit into 2844 6 times, resulting in a remainder of 396.
Write down 6 as next digit of the result. 
Result so far: 128166.0
Subtracting 2448 from 2844 leaves us with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

On to step 9:
3960 divided by 408 is 9 with a remainder of 288.
The next digit of our result is 9. 
Result so far: 128166.9
Subtract 3672 from 3960 to get 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Moving on to step 10:
When dividing 2880 by 408, we get 7 with a remainder of 24.
Put 7 as the next digit of the answer. 
Result so far: 128166.97
The remainder is 24 after subtracting 2856 from 2880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 11:
When dividing 240 by 408, we get 0 with a remainder of 240.
Record the quotient 0 as the next digit in the result. 
Result so far: 128166.97
Subtract 0 from 240 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 12:
When dividing 2400 by 408, we get 5 with a remainder of 360.
The next digit of our result is 5. 
Result so far: 128166.9705
Deduct 2040 from 2400 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Going ahead to step 13:
408 goes into 3600 8 times with a remainder of 336.
The number 8 becomes the next digit in our result. 
Result so far: 128166.97058
Subtracting 3264 from 3600 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Step 14:
408 goes into 3360 8 times with a remainder of 96.
Use 8 as the next digit of our solution. 
Result so far: 128166.970588
Subtract 3264 from 3360 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

The quotient of the division is 128166.970588, and the remainder is 9.6e-06.