We look at the division of 159649 by 49 
The aim is to understand the frequency of 49 in 159649.

Going ahead to step 1:
1 divided by 49 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 49

Step 2:
The number 49 fits into 15 0 times, leaving a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Append the next digit (9) from the dividend to 15 and continue with: 159 / 49

Going ahead to step 3:
If we divide 159 by 49, we get 3 and a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 147 from 159 to get 12.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 49

Step 4:
When dividing 126 by 49, we get 2 with a remainder of 28.
Write down 2 as next digit of the result. 
Result so far: 32.0
Deduct 98 from 126 and we're left with 28.
Grab the next digit (4) from the dividend, add it to 28, then carry on: 284 / 49

On to step 5:
If we divide 284 by 49, we get 5 and a remainder of 39.
The number 5 becomes the next digit in our result. 
Result so far: 325.0
Subtract 245 from 284 to get 39.
Fetch the next digit (9) from the dividend, attach it to 39 and continue: 399 / 49

Moving on to step 6:
49 can be fit into 399 8 times, resulting in a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 3258.0
Subtracting 392 from 399 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
When dividing 70 by 49, we get 1 with a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 3258.1
Deduct 49 from 70 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 8:
When dividing 210 by 49, we get 4 with a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 3258.14
Subtract 196 from 210 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 9:
If we divide 140 by 49, we get 2 and a remainder of 42.
The number 2 becomes the next digit in our result. 
Result so far: 3258.142
Deduct 98 from 140 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 10:
The number 49 fits into 420 8 times, leaving a remainder of 28.
Put 8 as the next digit of the answer. 
Result so far: 3258.1428
If we subtract 392 from 420, 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.

Advancing to step 11:
When dividing 280 by 49, we get 5 with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 3258.14285
Subtract 245 from 280 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 12:
When dividing 350 by 49, we get 7 with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 3258.142857
Subtracting 343 from 350 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 13:
49 goes into 70 1 times with a remainder of 21.
The next digit of our result is 1. 
Result so far: 3258.1428571
Deduct 49 from 70 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 14:
If we divide 210 by 49, we get 4 and a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 3258.14285714
Subtracting 196 from 210 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final result is 3258.14285714 with a remainder of 1.4e-08.