We're dividing 98694086 by 648 
The aim is to understand the frequency of 648 in 98694086.

Going ahead to step 1:
648 goes into 9 0 times with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 648

Advancing to step 2:
648 can be fit into 98 0 times, resulting in a remainder of 98.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 98 to get 98.
Append the next digit (6) from the dividend to 98 and continue with: 986 / 648

Let's proceed to step 3:
648 can be fit into 986 1 times, resulting in a remainder of 338.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 648 from 986 and we're left with 338.
Append the next digit (9) from the dividend to 338 and continue with: 3389 / 648

Moving on to step 4:
The number 648 fits into 3389 5 times, leaving a remainder of 149.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtracting 3240 from 3389 leaves us with 149.
Grab the next digit (4) from the dividend, add it to 149, then carry on: 1494 / 648

Let's proceed to step 5:
The number 648 fits into 1494 2 times, leaving a remainder of 198.
The number 2 becomes the next digit in our result. 
Result so far: 152.0
If we take 1296 away from 1494, we end up with 198.
Include the next digit (0) from the dividend after 198, then repeat: 1980 / 648

Step 6:
1980 divided by 648 is 3 with a remainder of 36.
The next digit of our result is 3. 
Result so far: 1523.0
If we take 1944 away from 1980, we end up with 36.
Append the next digit (8) from the dividend to 36 and continue with: 368 / 648

Moving on to step 7:
If we divide 368 by 648, we get 0 and a remainder of 368.
The number 0 becomes the next digit in our result. 
Result so far: 15230.0
Subtracting 0 from 368 leaves us with 368.
Append the next digit (6) from the dividend to 368 and continue with: 3686 / 648

Moving on to step 8:
If we divide 3686 by 648, we get 5 and a remainder of 446.
The number 5 becomes the next digit in our result. 
Result so far: 152305.0
Subtracting 3240 from 3686 leaves us with 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Advancing to step 9:
The number 648 fits into 4460 6 times, leaving a remainder of 572.
Put 6 as the next digit of the answer. 
Result so far: 152305.6
If we subtract 3888 from 4460, we get 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Moving on to step 10:
When dividing 5720 by 648, we get 8 with a remainder of 536.
Put 8 as the next digit of the answer. 
Result so far: 152305.68
Subtracting 5184 from 5720 leaves us with 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Going ahead to step 11:
When dividing 5360 by 648, we get 8 with a remainder of 176.
Use 8 as the next digit of our solution. 
Result so far: 152305.688
The remainder is 176 after subtracting 5184 from 5360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

After the division, we end up with 152305.688 and a remainder of 0.0176.