98539646 ÷ 425 
The aim is to understand the frequency of 425 in 98539646.

On to step 1:
The number 425 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 425

Step 2:
425 goes into 98 0 times with a remainder of 98.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 98 after subtracting 0 from 98.
Grab the next digit (5) from the dividend, add it to 98, then carry on: 985 / 425

On to step 3:
If we divide 985 by 425, we get 2 and a remainder of 135.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 850 from 985 and we're left with 135.
Grab the next digit (3) from the dividend, add it to 135, then carry on: 1353 / 425

Advancing to step 4:
If we divide 1353 by 425, we get 3 and a remainder of 78.
Use 3 as the next digit of our solution. 
Result so far: 23.0
Subtracting 1275 from 1353 leaves us with 78.
Grab the next digit (9) from the dividend, add it to 78, then carry on: 789 / 425

Let's proceed to step 5:
425 can be fit into 789 1 times, resulting in a remainder of 364.
Put 1 as the next digit of the answer. 
Result so far: 231.0
If we subtract 425 from 789, we get 364.
Include the next digit (6) from the dividend after 364, then repeat: 3646 / 425

Step 6:
When dividing 3646 by 425, we get 8 with a remainder of 246.
Record the quotient 8 as the next digit in the result. 
Result so far: 2318.0
If we subtract 3400 from 3646, we get 246.
Bring next digit (4) of the dividend behind the 246 and repeat the process: 2464 / 425

Let's proceed to step 7:
425 goes into 2464 5 times with a remainder of 339.
Use 5 as the next digit of our solution. 
Result so far: 23185.0
If we take 2125 away from 2464, we end up with 339.
Bring next digit (6) of the dividend behind the 339 and repeat the process: 3396 / 425

Let's proceed to step 8:
425 goes into 3396 7 times with a remainder of 421.
Use 7 as the next digit of our solution. 
Result so far: 231857.0
If we take 2975 away from 3396, we end up with 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

On to step 9:
The number 425 fits into 4210 9 times, leaving a remainder of 385.
Put 9 as the next digit of the answer. 
Result so far: 231857.9
Subtract 3825 from 4210 to get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Going ahead to step 10:
When dividing 3850 by 425, we get 9 with a remainder of 25.
The number 9 becomes the next digit in our result. 
Result so far: 231857.99
If we subtract 3825 from 3850, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

In conclusion, the division gives 231857.99 with a balance of 0.025.