We look at the division of 845121 by 49 
The aim is to understand the frequency of 49 in 845121.

Advancing to step 1:
If we divide 8 by 49, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 49

Let's proceed to step 2:
When dividing 84 by 49, we get 1 with a remainder of 35.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 49 from 84 and we're left with 35.
Append the next digit (5) from the dividend to 35 and continue with: 355 / 49

Step 3:
When dividing 355 by 49, we get 7 with a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we subtract 343 from 355, we get 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 49

Step 4:
49 can be fit into 121 2 times, resulting in a remainder of 23.
Record the quotient 2 as the next digit in the result. 
Result so far: 172.0
The remainder is 23 after subtracting 98 from 121.
Take the next digit (2) from the dividend and append it to 23, then repeat: 232 / 49

Let's proceed to step 5:
When dividing 232 by 49, we get 4 with a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 1724.0
The remainder is 36 after subtracting 196 from 232.
Fetch the next digit (1) from the dividend, attach it to 36 and continue: 361 / 49

Step 6:
361 divided by 49 is 7 with a remainder of 18.
Use 7 as the next digit of our solution. 
Result so far: 17247.0
Deduct 343 from 361 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 7:
49 goes into 180 3 times with a remainder of 33.
Write down 3 as next digit of the result. 
Result so far: 17247.3
The remainder is 33 after subtracting 147 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 8:
49 goes into 330 6 times with a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 17247.36
Subtracting 294 from 330 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 9:
49 goes into 360 7 times with a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 17247.367
Deduct 343 from 360 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 10:
49 goes into 170 3 times with a remainder of 23.
The next digit of our result is 3. 
Result so far: 17247.3673
If we take 147 away from 170, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 11:
If we divide 230 by 49, we get 4 and a remainder of 34.
Write down 4 as next digit of the result. 
Result so far: 17247.36734
If we take 196 away from 230, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 12:
If we divide 340 by 49, we get 6 and a remainder of 46.
Put 6 as the next digit of the answer. 
Result so far: 17247.367346
If we take 294 away from 340, 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 13:
When dividing 460 by 49, we get 9 with a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 17247.3673469
If we take 441 away from 460, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 14:
If we divide 190 by 49, we get 3 and a remainder of 43.
Record the quotient 3 as the next digit in the result. 
Result so far: 17247.36734693
If we subtract 147 from 190, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The final result is 17247.36734693 with a remainder of 4.3e-08.