We're dividing 72202544 by 406 
The aim is to understand the frequency of 406 in 72202544.

Advancing to step 1:
7 divided by 406 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 406

Moving on to step 2:
The number 406 fits into 72 0 times, leaving a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Take the next digit (2) from the dividend and append it to 72, then repeat: 722 / 406

Let's proceed to step 3:
If we divide 722 by 406, we get 1 and a remainder of 316.
The next digit of our result is 1. 
Result so far: 1.0
If we take 406 away from 722, we end up with 316.
Include the next digit (0) from the dividend after 316, then repeat: 3160 / 406

Step 4:
When dividing 3160 by 406, we get 7 with a remainder of 318.
Put 7 as the next digit of the answer. 
Result so far: 17.0
The remainder is 318 after subtracting 2842 from 3160.
Include the next digit (2) from the dividend after 318, then repeat: 3182 / 406

Advancing to step 5:
3182 divided by 406 is 7 with a remainder of 340.
Use 7 as the next digit of our solution. 
Result so far: 177.0
The remainder is 340 after subtracting 2842 from 3182.
Take the next digit (5) from the dividend and append it to 340, then repeat: 3405 / 406

Going ahead to step 6:
406 goes into 3405 8 times with a remainder of 157.
Write down 8 as next digit of the result. 
Result so far: 1778.0
Deduct 3248 from 3405 and we're left with 157.
Append the next digit (4) from the dividend to 157 and continue with: 1574 / 406

Going ahead to step 7:
The number 406 fits into 1574 3 times, leaving a remainder of 356.
The next digit of our result is 3. 
Result so far: 17783.0
If we take 1218 away from 1574, we end up with 356.
Bring next digit (4) of the dividend behind the 356 and repeat the process: 3564 / 406

Step 8:
3564 divided by 406 is 8 with a remainder of 316.
Write down 8 as next digit of the result. 
Result so far: 177838.0
If we subtract 3248 from 3564, we get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Advancing to step 9:
When dividing 3160 by 406, we get 7 with a remainder of 318.
The number 7 becomes the next digit in our result. 
Result so far: 177838.7
Subtracting 2842 from 3160 leaves us with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

On to step 10:
406 goes into 3180 7 times with a remainder of 338.
The number 7 becomes the next digit in our result. 
Result so far: 177838.77
Subtract 2842 from 3180 to get 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Our division results in 177838.77 with a remaining 0.338.