628545 divided by 49 
The aim is to understand the frequency of 49 in 628545.

On to step 1:
6 divided by 49 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 49

Let's proceed to step 2:
When dividing 62 by 49, we get 1 with a remainder of 13.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 49 from 62 leaves us with 13.
Append the next digit (8) from the dividend to 13 and continue with: 138 / 49

On to step 3:
49 can be fit into 138 2 times, resulting in a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 98 from 138 leaves us with 40.
Append the next digit (5) from the dividend to 40 and continue with: 405 / 49

Step 4:
The number 49 fits into 405 8 times, leaving a remainder of 13.
Put 8 as the next digit of the answer. 
Result so far: 128.0
Subtract 392 from 405 to get 13.
Grab the next digit (4) from the dividend, add it to 13, then carry on: 134 / 49

Let's proceed to step 5:
The number 49 fits into 134 2 times, leaving a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 1282.0
Subtract 98 from 134 to get 36.
Take the next digit (5) from the dividend and append it to 36, then repeat: 365 / 49

Advancing to step 6:
The number 49 fits into 365 7 times, leaving a remainder of 22.
Write down 7 as next digit of the result. 
Result so far: 12827.0
If we subtract 343 from 365, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 7:
The number 49 fits into 220 4 times, leaving a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 12827.4
If we take 196 away from 220, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 8:
49 goes into 240 4 times with a remainder of 44.
Record the quotient 4 as the next digit in the result. 
Result so far: 12827.44
The remainder is 44 after subtracting 196 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

After the division, we end up with 12827.44 and a remainder of 0.044.