981370 divided by 87 
The aim is to understand the frequency of 87 in 981370.

Let's proceed to step 1:
9 divided by 87 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 87

Advancing to step 2:
When dividing 98 by 87, we get 1 with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 87 from 98 to get 11.
Include the next digit (1) from the dividend after 11, then repeat: 111 / 87

Moving on to step 3:
The number 87 fits into 111 1 times, leaving a remainder of 24.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 87 from 111 to get 24.
Take the next digit (3) from the dividend and append it to 24, then repeat: 243 / 87

Step 4:
243 divided by 87 is 2 with a remainder of 69.
The next digit of our result is 2. 
Result so far: 112.0
Subtract 174 from 243 to get 69.
Grab the next digit (7) from the dividend, add it to 69, then carry on: 697 / 87

Moving on to step 5:
If we divide 697 by 87, we get 8 and a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 1128.0
Deduct 696 from 697 and we're left with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 87

Let's proceed to step 6:
87 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 11280.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
87 can be fit into 100 1 times, resulting in a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 11280.1
Deduct 87 from 100 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 8:
When dividing 130 by 87, we get 1 with a remainder of 43.
Put 1 as the next digit of the answer. 
Result so far: 11280.11
Deduct 87 from 130 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

In conclusion, the division gives 11280.11 with a balance of 0.043.