We look at the division of 25892733 by 354 
The aim is to understand the frequency of 354 in 25892733.

Advancing to step 1:
If we divide 2 by 354, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 354

Advancing to step 2:
354 can be fit into 25 0 times, resulting in a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Include the next digit (8) from the dividend after 25, then repeat: 258 / 354

Going ahead to step 3:
354 can be fit into 258 0 times, resulting in a remainder of 258.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 258 after subtracting 0 from 258.
Include the next digit (9) from the dividend after 258, then repeat: 2589 / 354

Moving on to step 4:
The number 354 fits into 2589 7 times, leaving a remainder of 111.
Put 7 as the next digit of the answer. 
Result so far: 7.0
The remainder is 111 after subtracting 2478 from 2589.
Include the next digit (2) from the dividend after 111, then repeat: 1112 / 354

Moving on to step 5:
When dividing 1112 by 354, we get 3 with a remainder of 50.
Use 3 as the next digit of our solution. 
Result so far: 73.0
If we take 1062 away from 1112, we end up with 50.
Append the next digit (7) from the dividend to 50 and continue with: 507 / 354

Step 6:
When dividing 507 by 354, we get 1 with a remainder of 153.
Put 1 as the next digit of the answer. 
Result so far: 731.0
Subtracting 354 from 507 leaves us with 153.
Grab the next digit (3) from the dividend, add it to 153, then carry on: 1533 / 354

On to step 7:
When dividing 1533 by 354, we get 4 with a remainder of 117.
Use 4 as the next digit of our solution. 
Result so far: 7314.0
The remainder is 117 after subtracting 1416 from 1533.
Bring next digit (3) of the dividend behind the 117 and repeat the process: 1173 / 354

Let's proceed to step 8:
The number 354 fits into 1173 3 times, leaving a remainder of 111.
Write down 3 as next digit of the result. 
Result so far: 73143.0
Subtract 1062 from 1173 to get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Moving on to step 9:
1110 divided by 354 is 3 with a remainder of 48.
Record the quotient 3 as the next digit in the result. 
Result so far: 73143.3
The remainder is 48 after subtracting 1062 from 1110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 10:
The number 354 fits into 480 1 times, leaving a remainder of 126.
Put 1 as the next digit of the answer. 
Result so far: 73143.31
If we take 354 away from 480, we end up with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Going ahead to step 11:
When dividing 1260 by 354, we get 3 with a remainder of 198.
Write down 3 as next digit of the result. 
Result so far: 73143.313
Subtracting 1062 from 1260 leaves us with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Advancing to step 12:
The number 354 fits into 1980 5 times, leaving a remainder of 210.
The next digit of our result is 5. 
Result so far: 73143.3135
If we subtract 1770 from 1980, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Step 13:
If we divide 2100 by 354, we get 5 and a remainder of 330.
Put 5 as the next digit of the answer. 
Result so far: 73143.31355
Deduct 1770 from 2100 and we're left with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

The final result is 73143.31355 with a remainder of 0.00033.