31388229 ÷ 945 
The aim is to understand the frequency of 945 in 31388229.

Going ahead to step 1:
3 divided by 945 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 945

Going ahead to step 2:
When dividing 31 by 945, we get 0 with a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 31 leaves us with 31.
Take the next digit (3) from the dividend and append it to 31, then repeat: 313 / 945

Advancing to step 3:
If we divide 313 by 945, we get 0 and a remainder of 313.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 313 leaves us with 313.
Bring next digit (8) of the dividend behind the 313 and repeat the process: 3138 / 945

On to step 4:
945 can be fit into 3138 3 times, resulting in a remainder of 303.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 303 after subtracting 2835 from 3138.
Include the next digit (8) from the dividend after 303, then repeat: 3038 / 945

Advancing to step 5:
If we divide 3038 by 945, we get 3 and a remainder of 203.
Write down 3 as next digit of the result. 
Result so far: 33.0
If we subtract 2835 from 3038, we get 203.
Append the next digit (2) from the dividend to 203 and continue with: 2032 / 945

Step 6:
If we divide 2032 by 945, we get 2 and a remainder of 142.
The next digit of our result is 2. 
Result so far: 332.0
Subtracting 1890 from 2032 leaves us with 142.
Include the next digit (2) from the dividend after 142, then repeat: 1422 / 945

Moving on to step 7:
When dividing 1422 by 945, we get 1 with a remainder of 477.
The number 1 becomes the next digit in our result. 
Result so far: 3321.0
The remainder is 477 after subtracting 945 from 1422.
Bring next digit (9) of the dividend behind the 477 and repeat the process: 4779 / 945

On to step 8:
945 goes into 4779 5 times with a remainder of 54.
Use 5 as the next digit of our solution. 
Result so far: 33215.0
If we take 4725 away from 4779, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 9:
When dividing 540 by 945, we get 0 with a remainder of 540.
Put 0 as the next digit of the answer. 
Result so far: 33215.0
Subtract 0 from 540 to get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Let's proceed to step 10:
If we divide 5400 by 945, we get 5 and a remainder of 675.
The next digit of our result is 5. 
Result so far: 33215.05
Subtracting 4725 from 5400 leaves us with 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

Let's proceed to step 11:
If we divide 6750 by 945, we get 7 and a remainder of 135.
Write down 7 as next digit of the result. 
Result so far: 33215.057
Deduct 6615 from 6750 and we're left with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Going ahead to step 12:
945 goes into 1350 1 times with a remainder of 405.
The next digit of our result is 1. 
Result so far: 33215.0571
If we subtract 945 from 1350, we get 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Step 13:
4050 divided by 945 is 4 with a remainder of 270.
Record the quotient 4 as the next digit in the result. 
Result so far: 33215.05714
Subtracting 3780 from 4050 leaves us with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Let's proceed to step 14:
945 goes into 2700 2 times with a remainder of 810.
Put 2 as the next digit of the answer. 
Result so far: 33215.057142
Deduct 1890 from 2700 and we're left with 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Moving on to step 15:
8100 divided by 945 is 8 with a remainder of 540.
The next digit of our result is 8. 
Result so far: 33215.0571428
Subtracting 7560 from 8100 leaves us with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Let's proceed to step 16:
945 can be fit into 5400 5 times, resulting in a remainder of 675.
Use 5 as the next digit of our solution. 
Result so far: 33215.05714285
If we subtract 4725 from 5400, we get 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

The final outcome is 33215.05714285, with a leftover of 6.75e-07.