Let's divide 87861180 by 993
The aim is to understand the frequency of 993 in 87861180.

Let's proceed to step 1:
The number 993 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 993

Let's proceed to step 2:
The number 993 fits into 87 0 times, leaving a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Take the next digit (8) from the dividend and append it to 87, then repeat: 878 / 993

Advancing to step 3:
When dividing 878 by 993, we get 0 with a remainder of 878.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 878 to get 878.
Include the next digit (6) from the dividend after 878, then repeat: 8786 / 993

Advancing to step 4:
If we divide 8786 by 993, we get 8 and a remainder of 842.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 842 after subtracting 7944 from 8786.
Bring next digit (1) of the dividend behind the 842 and repeat the process: 8421 / 993

On to step 5:
993 goes into 8421 8 times with a remainder of 477.
Use 8 as the next digit of our solution. 
Result so far: 88.0
Subtract 7944 from 8421 to get 477.
Take the next digit (1) from the dividend and append it to 477, then repeat: 4771 / 993

Advancing to step 6:
993 can be fit into 4771 4 times, resulting in a remainder of 799.
Write down 4 as next digit of the result. 
Result so far: 884.0
Subtract 3972 from 4771 to get 799.
Include the next digit (8) from the dividend after 799, then repeat: 7998 / 993

Moving on to step 7:
993 can be fit into 7998 8 times, resulting in a remainder of 54.
Use 8 as the next digit of our solution. 
Result so far: 8848.0
Subtract 7944 from 7998 to get 54.
Include the next digit (0) from the dividend after 54, then repeat: 540 / 993

Going ahead to step 8:
993 goes into 540 0 times with a remainder of 540.
Record the quotient 0 as the next digit in the result. 
Result so far: 88480.0
Deduct 0 from 540 and we're left with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Step 9:
993 goes into 5400 5 times with a remainder of 435.
Record the quotient 5 as the next digit in the result. 
Result so far: 88480.5
Subtracting 4965 from 5400 leaves us with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Moving on to step 10:
993 can be fit into 4350 4 times, resulting in a remainder of 378.
Use 4 as the next digit of our solution. 
Result so far: 88480.54
If we take 3972 away from 4350, we end up with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Going ahead to step 11:
If we divide 3780 by 993, we get 3 and a remainder of 801.
Write down 3 as next digit of the result. 
Result so far: 88480.543
The remainder is 801 after subtracting 2979 from 3780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8010, and continue the process.

Step 12:
993 can be fit into 8010 8 times, resulting in a remainder of 66.
Record the quotient 8 as the next digit in the result. 
Result so far: 88480.5438
Deduct 7944 from 8010 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 13:
660 divided by 993 is 0 with a remainder of 660.
The next digit of our result is 0. 
Result so far: 88480.5438
The remainder is 660 after subtracting 0 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Let's proceed to step 14:
993 can be fit into 6600 6 times, resulting in a remainder of 642.
Put 6 as the next digit of the answer. 
Result so far: 88480.543806
Subtracting 5958 from 6600 leaves us with 642.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6420, and continue the process.

Advancing to step 15:
When dividing 6420 by 993, we get 6 with a remainder of 462.
The next digit of our result is 6. 
Result so far: 88480.5438066
Subtracting 5958 from 6420 leaves us with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

The quotient of the division is 88480.5438066, and the remainder is 4.62e-06.