We're dividing 538690 by 49 
The aim is to understand the frequency of 49 in 538690.

On to step 1:
When dividing 5 by 49, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 49

Advancing to step 2:
When dividing 53 by 49, we get 1 with a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 49 from 53 leaves us with 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 49

On to step 3:
The number 49 fits into 48 0 times, leaving a remainder of 48.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 48 to get 48.
Grab the next digit (6) from the dividend, add it to 48, then carry on: 486 / 49

On to step 4:
49 goes into 486 9 times with a remainder of 45.
The next digit of our result is 9. 
Result so far: 109.0
Subtracting 441 from 486 leaves us with 45.
Append the next digit (9) from the dividend to 45 and continue with: 459 / 49

Advancing to step 5:
When dividing 459 by 49, we get 9 with a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 1099.0
Subtract 441 from 459 to get 18.
Fetch the next digit (0) from the dividend, attach it to 18 and continue: 180 / 49

Let's proceed to step 6:
49 can be fit into 180 3 times, resulting in a remainder of 33.
Record the quotient 3 as the next digit in the result. 
Result so far: 10993.0
Subtracting 147 from 180 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 7:
The number 49 fits into 330 6 times, leaving a remainder of 36.
Use 6 as the next digit of our solution. 
Result so far: 10993.6
If we take 294 away from 330, we end up 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 8:
360 divided by 49 is 7 with a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 10993.67
Subtracting 343 from 360 leaves us 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.

Step 9:
49 can be fit into 170 3 times, resulting in a remainder of 23.
Use 3 as the next digit of our solution. 
Result so far: 10993.673
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 10:
49 can be fit into 230 4 times, resulting in a remainder of 34.
Put 4 as the next digit of the answer. 
Result so far: 10993.6734
Subtract 196 from 230 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 11:
49 can be fit into 340 6 times, resulting in a remainder of 46.
The number 6 becomes the next digit in our result. 
Result so far: 10993.67346
Subtracting 294 from 340 leaves us 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.

Going ahead to step 12:
If we divide 460 by 49, we get 9 and a remainder of 19.
Write down 9 as next digit of the result. 
Result so far: 10993.673469
Deduct 441 from 460 and we're left 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.

Advancing to step 13:
49 goes into 190 3 times with a remainder of 43.
Put 3 as the next digit of the answer. 
Result so far: 10993.6734693
Subtract 147 from 190 to 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.

Step 14:
If we divide 430 by 49, we get 8 and a remainder of 38.
Use 8 as the next digit of our solution. 
Result so far: 10993.67346938
If we take 392 away from 430, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final result is 10993.67346938 with a remainder of 3.8e-08.