We look at the division of 819812 by 49 
The aim is to understand the frequency of 49 in 819812.

Let's proceed to step 1:
If we divide 8 by 49, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 49

Going ahead to step 2:
The number 49 fits into 81 1 times, leaving a remainder of 32.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 49 from 81 to get 32.
Fetch the next digit (9) from the dividend, attach it to 32 and continue: 329 / 49

Advancing to step 3:
When dividing 329 by 49, we get 6 with a remainder of 35.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 294 away from 329, we end up with 35.
Append the next digit (8) from the dividend to 35 and continue with: 358 / 49

Let's proceed to step 4:
358 divided by 49 is 7 with a remainder of 15.
The next digit of our result is 7. 
Result so far: 167.0
Subtracting 343 from 358 leaves us with 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 49

Let's proceed to step 5:
49 goes into 151 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 1673.0
Subtract 147 from 151 to get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 49

Step 6:
If we divide 42 by 49, we get 0 and a remainder of 42.
The next digit of our result is 0. 
Result so far: 16730.0
Subtract 0 from 42 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 7:
If we divide 420 by 49, we get 8 and a remainder of 28.
Put 8 as the next digit of the answer. 
Result so far: 16730.8
Deduct 392 from 420 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 8:
49 goes into 280 5 times with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 16730.85
If we subtract 245 from 280, we 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.

On to step 9:
49 can be fit into 350 7 times, resulting in a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 16730.857
The remainder is 7 after subtracting 343 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 10:
70 divided by 49 is 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 16730.8571
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 11:
The number 49 fits into 210 4 times, leaving a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 16730.85714
If we subtract 196 from 210, we 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.

On to step 12:
If we divide 140 by 49, we get 2 and a remainder of 42.
Write down 2 as next digit of the result. 
Result so far: 16730.857142
If we subtract 98 from 140, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 13:
49 can be fit into 420 8 times, resulting in a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 16730.8571428
Subtracting 392 from 420 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 14:
49 can be fit into 280 5 times, resulting in a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 16730.85714285
The remainder is 35 after subtracting 245 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The final outcome is 16730.85714285, with a leftover of 3.5e-08.