We look at the division of 143970 by 49 
The aim is to understand the frequency of 49 in 143970.

Advancing to step 1:
The number 49 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 49

Let's proceed to step 2:
49 can be fit into 14 0 times, resulting in a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 14 after subtracting 0 from 14.
Fetch the next digit (3) from the dividend, attach it to 14 and continue: 143 / 49

Going ahead to step 3:
143 divided by 49 is 2 with a remainder of 45.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 98 from 143 and we're left with 45.
Include the next digit (9) from the dividend after 45, then repeat: 459 / 49

Step 4:
The number 49 fits into 459 9 times, leaving a remainder of 18.
Write down 9 as next digit of the result. 
Result so far: 29.0
If we subtract 441 from 459, we get 18.
Include the next digit (7) from the dividend after 18, then repeat: 187 / 49

On to step 5:
49 can be fit into 187 3 times, resulting in a remainder of 40.
The next digit of our result is 3. 
Result so far: 293.0
Subtracting 147 from 187 leaves us with 40.
Fetch the next digit (0) from the dividend, attach it to 40 and continue: 400 / 49

Going ahead to step 6:
The number 49 fits into 400 8 times, leaving a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 2938.0
Deduct 392 from 400 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
80 divided by 49 is 1 with a remainder of 31.
Put 1 as the next digit of the answer. 
Result so far: 2938.1
Subtract 49 from 80 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 8:
The number 49 fits into 310 6 times, leaving a remainder of 16.
The next digit of our result is 6. 
Result so far: 2938.16
Deduct 294 from 310 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
49 goes into 160 3 times with a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 2938.163
Deduct 147 from 160 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 10:
When dividing 130 by 49, we get 2 with a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 2938.1632
If we subtract 98 from 130, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 11:
320 divided by 49 is 6 with a remainder of 26.
Use 6 as the next digit of our solution. 
Result so far: 2938.16326
Deduct 294 from 320 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 12:
49 goes into 260 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 2938.163265
If we take 245 away from 260, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 13:
If we divide 150 by 49, we get 3 and a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 2938.1632653
The remainder is 3 after subtracting 147 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 14:
30 divided by 49 is 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 2938.1632653
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

In conclusion, the division gives 2938.1632653 with a balance of 3e-08.