We're dividing 75109719 by 860 
The aim is to understand the frequency of 860 in 75109719.

Advancing to step 1:
If we divide 7 by 860, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 860

On to step 2:
860 goes into 75 0 times with a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 75 leaves us with 75.
Take the next digit (1) from the dividend and append it to 75, then repeat: 751 / 860

On to step 3:
751 divided by 860 is 0 with a remainder of 751.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 751, we end up with 751.
Take the next digit (0) from the dividend and append it to 751, then repeat: 7510 / 860

Let's proceed to step 4:
860 can be fit into 7510 8 times, resulting in a remainder of 630.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 6880 from 7510 and we're left with 630.
Include the next digit (9) from the dividend after 630, then repeat: 6309 / 860

On to step 5:
860 goes into 6309 7 times with a remainder of 289.
Use 7 as the next digit of our solution. 
Result so far: 87.0
If we subtract 6020 from 6309, we get 289.
Take the next digit (7) from the dividend and append it to 289, then repeat: 2897 / 860

Moving on to step 6:
2897 divided by 860 is 3 with a remainder of 317.
Use 3 as the next digit of our solution. 
Result so far: 873.0
Subtracting 2580 from 2897 leaves us with 317.
Append the next digit (1) from the dividend to 317 and continue with: 3171 / 860

Step 7:
The number 860 fits into 3171 3 times, leaving a remainder of 591.
The next digit of our result is 3. 
Result so far: 8733.0
Deduct 2580 from 3171 and we're left with 591.
Grab the next digit (9) from the dividend, add it to 591, then carry on: 5919 / 860

On to step 8:
The number 860 fits into 5919 6 times, leaving a remainder of 759.
Put 6 as the next digit of the answer. 
Result so far: 87336.0
Subtract 5160 from 5919 to get 759.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7590, and continue the process.

Let's proceed to step 9:
If we divide 7590 by 860, we get 8 and a remainder of 710.
Write down 8 as next digit of the result. 
Result so far: 87336.8
Subtracting 6880 from 7590 leaves us with 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7100, and continue the process.

Going ahead to step 10:
When dividing 7100 by 860, we get 8 with a remainder of 220.
The number 8 becomes the next digit in our result. 
Result so far: 87336.88
If we subtract 6880 from 7100, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Our division results in 87336.88 with a remaining 0.22.