906972 divided by 87 
The aim is to understand the frequency of 87 in 906972.

Step 1:
If we divide 9 by 87, we get 0 and 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.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 87

Moving on to step 2:
87 goes into 90 1 times with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 87 from 90 leaves us with 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 87

Step 3:
The number 87 fits into 36 0 times, leaving a remainder of 36.
The next digit of our result is 0. 
Result so far: 10.0
Deduct 0 from 36 and we're left with 36.
Include the next digit (9) from the dividend after 36, then repeat: 369 / 87

Step 4:
87 can be fit into 369 4 times, resulting in a remainder of 21.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
If we take 348 away from 369, we end up with 21.
Append the next digit (7) from the dividend to 21 and continue with: 217 / 87

Going ahead to step 5:
87 can be fit into 217 2 times, resulting in a remainder of 43.
Use 2 as the next digit of our solution. 
Result so far: 1042.0
Subtract 174 from 217 to get 43.
Take the next digit (2) from the dividend and append it to 43, then repeat: 432 / 87

Advancing to step 6:
When dividing 432 by 87, we get 4 with a remainder of 84.
Put 4 as the next digit of the answer. 
Result so far: 10424.0
Subtracting 348 from 432 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 7:
87 can be fit into 840 9 times, resulting in a remainder of 57.
Put 9 as the next digit of the answer. 
Result so far: 10424.9
Subtract 783 from 840 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 8:
When dividing 570 by 87, we get 6 with a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 10424.96
Subtract 522 from 570 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 9:
87 goes into 480 5 times with a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 10424.965
If we take 435 away from 480, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 10:
If we divide 450 by 87, we get 5 and a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 10424.9655
Subtracting 435 from 450 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The quotient of the division is 10424.9655, and the remainder is 0.00015.