We look at the division of 31200264 by 434 
The aim is to understand the frequency of 434 in 31200264.

On to step 1:
434 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 434

Let's proceed to step 2:
If we divide 31 by 434, we get 0 and a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 434

On to step 3:
312 divided by 434 is 0 with a remainder of 312.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 312 and we're left with 312.
Bring next digit (0) of the dividend behind the 312 and repeat the process: 3120 / 434

Step 4:
3120 divided by 434 is 7 with a remainder of 82.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 3038 away from 3120, we end up with 82.
Append the next digit (0) from the dividend to 82 and continue with: 820 / 434

Advancing to step 5:
434 can be fit into 820 1 times, resulting in a remainder of 386.
The number 1 becomes the next digit in our result. 
Result so far: 71.0
Subtracting 434 from 820 leaves us with 386.
Take the next digit (2) from the dividend and append it to 386, then repeat: 3862 / 434

Step 6:
3862 divided by 434 is 8 with a remainder of 390.
Record the quotient 8 as the next digit in the result. 
Result so far: 718.0
Deduct 3472 from 3862 and we're left with 390.
Append the next digit (6) from the dividend to 390 and continue with: 3906 / 434

Let's proceed to step 7:
434 can be fit into 3906 9 times, resulting in a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 7189.0
Deduct 3906 from 3906 and we're left with 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 434

Going ahead to step 8:
When dividing 4 by 434, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 71890.0
Subtracting 0 from 4 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
The number 434 fits into 40 0 times, leaving a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 71890.0
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
400 divided by 434 is 0 with a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 71890.0
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final result is 71890.0 with a remainder of 0.4.