Let's divide 43542298 by 306
The aim is to understand the frequency of 306 in 43542298.

On to step 1:
The number 306 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 306

Advancing to step 2:
The number 306 fits into 43 0 times, leaving a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Include the next digit (5) from the dividend after 43, then repeat: 435 / 306

Advancing to step 3:
When dividing 435 by 306, we get 1 with a remainder of 129.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 306 away from 435, we end up with 129.
Include the next digit (4) from the dividend after 129, then repeat: 1294 / 306

Advancing to step 4:
If we divide 1294 by 306, we get 4 and a remainder of 70.
Put 4 as the next digit of the answer. 
Result so far: 14.0
If we subtract 1224 from 1294, we get 70.
Append the next digit (2) from the dividend to 70 and continue with: 702 / 306

Step 5:
306 goes into 702 2 times with a remainder of 90.
Use 2 as the next digit of our solution. 
Result so far: 142.0
Deduct 612 from 702 and we're left with 90.
Bring next digit (2) of the dividend behind the 90 and repeat the process: 902 / 306

Going ahead to step 6:
If we divide 902 by 306, we get 2 and a remainder of 290.
Use 2 as the next digit of our solution. 
Result so far: 1422.0
Subtract 612 from 902 to get 290.
Take the next digit (9) from the dividend and append it to 290, then repeat: 2909 / 306

Step 7:
If we divide 2909 by 306, we get 9 and a remainder of 155.
The next digit of our result is 9. 
Result so far: 14229.0
The remainder is 155 after subtracting 2754 from 2909.
Append the next digit (8) from the dividend to 155 and continue with: 1558 / 306

Going ahead to step 8:
When dividing 1558 by 306, we get 5 with a remainder of 28.
The number 5 becomes the next digit in our result. 
Result so far: 142295.0
If we subtract 1530 from 1558, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
280 divided by 306 is 0 with a remainder of 280.
Put 0 as the next digit of the answer. 
Result so far: 142295.0
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 10:
When dividing 2800 by 306, we get 9 with a remainder of 46.
The next digit of our result is 9. 
Result so far: 142295.09
If we take 2754 away from 2800, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 11:
If we divide 460 by 306, we get 1 and a remainder of 154.
Write down 1 as next digit of the result. 
Result so far: 142295.091
If we take 306 away from 460, we end up with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Advancing to step 12:
306 goes into 1540 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 142295.0915
If we take 1530 away from 1540, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 13:
If we divide 100 by 306, we get 0 and a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 142295.0915
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 14:
1000 divided by 306 is 3 with a remainder of 82.
Use 3 as the next digit of our solution. 
Result so far: 142295.091503
The remainder is 82 after subtracting 918 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

On to step 15:
306 can be fit into 820 2 times, resulting in a remainder of 208.
Record the quotient 2 as the next digit in the result. 
Result so far: 142295.0915032
The remainder is 208 after subtracting 612 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Let's proceed to step 16:
2080 divided by 306 is 6 with a remainder of 244.
The number 6 becomes the next digit in our result. 
Result so far: 142295.09150326
Subtracting 1836 from 2080 leaves us with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

The final result is 142295.09150326 with a remainder of 2.44e-07.