We're dividing 372990 by 88 
The aim is to understand the frequency of 88 in 372990.

Moving on to step 1:
88 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 88

Moving on to step 2:
The number 88 fits into 37 0 times, leaving a remainder of 37.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 37 and we're left with 37.
Include the next digit (2) from the dividend after 37, then repeat: 372 / 88

Step 3:
When dividing 372 by 88, we get 4 with a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 352 from 372 leaves us with 20.
Take the next digit (9) from the dividend and append it to 20, then repeat: 209 / 88

Moving on to step 4:
209 divided by 88 is 2 with a remainder of 33.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
The remainder is 33 after subtracting 176 from 209.
Bring next digit (9) of the dividend behind the 33 and repeat the process: 339 / 88

Step 5:
When dividing 339 by 88, we get 3 with a remainder of 75.
The number 3 becomes the next digit in our result. 
Result so far: 423.0
The remainder is 75 after subtracting 264 from 339.
Append the next digit (0) from the dividend to 75 and continue with: 750 / 88

Let's proceed to step 6:
750 divided by 88 is 8 with a remainder of 46.
Record the quotient 8 as the next digit in the result. 
Result so far: 4238.0
If we subtract 704 from 750, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 7:
88 goes into 460 5 times with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 4238.5
If we take 440 away from 460, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
The number 88 fits into 200 2 times, leaving a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 4238.52
If we take 176 away from 200, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 9:
88 can be fit into 240 2 times, resulting in a remainder of 64.
Write down 2 as next digit of the result. 
Result so far: 4238.522
If we subtract 176 from 240, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final outcome is 4238.522, with a leftover of 0.0064.