877519 divided by 61 
The aim is to understand the frequency of 61 in 877519.

On to step 1:
61 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 61

Moving on to step 2:
If we divide 87 by 61, we get 1 and a remainder of 26.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 61 from 87 and we're left with 26.
Take the next digit (7) from the dividend and append it to 26, then repeat: 267 / 61

Let's proceed to step 3:
61 can be fit into 267 4 times, resulting in a remainder of 23.
Use 4 as the next digit of our solution. 
Result so far: 14.0
The remainder is 23 after subtracting 244 from 267.
Append the next digit (5) from the dividend to 23 and continue with: 235 / 61

Step 4:
235 divided by 61 is 3 with a remainder of 52.
Use 3 as the next digit of our solution. 
Result so far: 143.0
If we subtract 183 from 235, we get 52.
Include the next digit (1) from the dividend after 52, then repeat: 521 / 61

Step 5:
61 goes into 521 8 times with a remainder of 33.
Record the quotient 8 as the next digit in the result. 
Result so far: 1438.0
Subtract 488 from 521 to get 33.
Include the next digit (9) from the dividend after 33, then repeat: 339 / 61

On to step 6:
If we divide 339 by 61, we get 5 and a remainder of 34.
Use 5 as the next digit of our solution. 
Result so far: 14385.0
If we subtract 305 from 339, we 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.

Going ahead to step 7:
When dividing 340 by 61, we get 5 with a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 14385.5
If we take 305 away from 340, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 8:
61 goes into 350 5 times with a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 14385.55
The remainder is 45 after subtracting 305 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Our division results in 14385.55 with a remaining 0.045.