99575680 ÷ 186 
The aim is to understand the frequency of 186 in 99575680.

On to step 1:
When dividing 9 by 186, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 186

Advancing to step 2:
186 goes into 99 0 times with a remainder of 99.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Bring next digit (5) of the dividend behind the 99 and repeat the process: 995 / 186

Going ahead to step 3:
If we divide 995 by 186, we get 5 and a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 930 from 995 leaves us with 65.
Grab the next digit (7) from the dividend, add it to 65, then carry on: 657 / 186

Going ahead to step 4:
657 divided by 186 is 3 with a remainder of 99.
The next digit of our result is 3. 
Result so far: 53.0
Deduct 558 from 657 and we're left with 99.
Grab the next digit (5) from the dividend, add it to 99, then carry on: 995 / 186

Advancing to step 5:
186 can be fit into 995 5 times, resulting in a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 535.0
Deduct 930 from 995 and we're left with 65.
Fetch the next digit (6) from the dividend, attach it to 65 and continue: 656 / 186

On to step 6:
The number 186 fits into 656 3 times, leaving a remainder of 98.
Use 3 as the next digit of our solution. 
Result so far: 5353.0
If we subtract 558 from 656, we get 98.
Append the next digit (8) from the dividend to 98 and continue with: 988 / 186

Advancing to step 7:
186 can be fit into 988 5 times, resulting in a remainder of 58.
Record the quotient 5 as the next digit in the result. 
Result so far: 53535.0
Deduct 930 from 988 and we're left with 58.
Grab the next digit (0) from the dividend, add it to 58, then carry on: 580 / 186

On to step 8:
186 can be fit into 580 3 times, resulting in a remainder of 22.
The next digit of our result is 3. 
Result so far: 535353.0
Subtracting 558 from 580 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 9:
If we divide 220 by 186, we get 1 and a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 535353.1
Subtract 186 from 220 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.

Step 10:
When dividing 340 by 186, we get 1 with a remainder of 154.
The next digit of our result is 1. 
Result so far: 535353.11
If we take 186 away from 340, we end up with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

The quotient of the division is 535353.11, and the remainder is 0.154.