86572585 divided by 49 
The aim is to understand the frequency of 49 in 86572585.

On to step 1:
49 goes into 8 0 times with 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.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 49

Advancing to step 2:
When dividing 86 by 49, we get 1 with a remainder of 37.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 49 from 86 leaves us with 37.
Append the next digit (5) from the dividend to 37 and continue with: 375 / 49

Moving on to step 3:
49 can be fit into 375 7 times, resulting in a remainder of 32.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we subtract 343 from 375, we get 32.
Take the next digit (7) from the dividend and append it to 32, then repeat: 327 / 49

Step 4:
When dividing 327 by 49, we get 6 with a remainder of 33.
Use 6 as the next digit of our solution. 
Result so far: 176.0
Deduct 294 from 327 and we're left with 33.
Grab the next digit (2) from the dividend, add it to 33, then carry on: 332 / 49

Going ahead to step 5:
49 goes into 332 6 times with a remainder of 38.
The number 6 becomes the next digit in our result. 
Result so far: 1766.0
Deduct 294 from 332 and we're left with 38.
Take the next digit (5) from the dividend and append it to 38, then repeat: 385 / 49

Let's proceed to step 6:
The number 49 fits into 385 7 times, leaving a remainder of 42.
The number 7 becomes the next digit in our result. 
Result so far: 17667.0
If we take 343 away from 385, we end up with 42.
Bring next digit (8) of the dividend behind the 42 and repeat the process: 428 / 49

Moving on to step 7:
49 goes into 428 8 times with a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 176678.0
The remainder is 36 after subtracting 392 from 428.
Append the next digit (5) from the dividend to 36 and continue with: 365 / 49

Step 8:
365 divided by 49 is 7 with a remainder of 22.
Put 7 as the next digit of the answer. 
Result so far: 1766787.0
The remainder is 22 after subtracting 343 from 365.
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 9:
The number 49 fits into 220 4 times, leaving a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 1766787.4
If we subtract 196 from 220, we get 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 10:
49 goes into 240 4 times with a remainder of 44.
Write down 4 as next digit of the result. 
Result so far: 1766787.44
Subtract 196 from 240 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 1766787.44 with a remainder of 0.044.