909869 ÷ 87 
The aim is to understand the frequency of 87 in 909869.

Advancing to step 1:
The number 87 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 87

Step 2:
87 goes into 90 1 times with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 87 from 90 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 87

Going ahead to step 3:
If we divide 39 by 87, we get 0 and a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtract 0 from 39 to get 39.
Fetch the next digit (8) from the dividend, attach it to 39 and continue: 398 / 87

Let's proceed to step 4:
87 can be fit into 398 4 times, resulting in a remainder of 50.
Use 4 as the next digit of our solution. 
Result so far: 104.0
Subtracting 348 from 398 leaves us with 50.
Grab the next digit (6) from the dividend, add it to 50, then carry on: 506 / 87

Moving on to step 5:
The number 87 fits into 506 5 times, leaving a remainder of 71.
Record the quotient 5 as the next digit in the result. 
Result so far: 1045.0
If we subtract 435 from 506, we get 71.
Include the next digit (9) from the dividend after 71, then repeat: 719 / 87

Let's proceed to step 6:
When dividing 719 by 87, we get 8 with a remainder of 23.
Put 8 as the next digit of the answer. 
Result so far: 10458.0
If we subtract 696 from 719, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 7:
If we divide 230 by 87, we get 2 and a remainder of 56.
Use 2 as the next digit of our solution. 
Result so far: 10458.2
Subtract 174 from 230 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 8:
87 can be fit into 560 6 times, resulting in a remainder of 38.
The number 6 becomes the next digit in our result. 
Result so far: 10458.26
Subtract 522 from 560 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 9:
When dividing 380 by 87, we get 4 with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 10458.264
Deduct 348 from 380 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 10:
87 goes into 320 3 times with a remainder of 59.
Put 3 as the next digit of the answer. 
Result so far: 10458.2643
Subtract 261 from 320 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 11:
When dividing 590 by 87, we get 6 with a remainder of 68.
The next digit of our result is 6. 
Result so far: 10458.26436
If we take 522 away from 590, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 12:
When dividing 680 by 87, we get 7 with a remainder of 71.
The number 7 becomes the next digit in our result. 
Result so far: 10458.264367
If we take 609 away from 680, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 13:
710 divided by 87 is 8 with a remainder of 14.
The next digit of our result is 8. 
Result so far: 10458.2643678
Deduct 696 from 710 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 14:
87 can be fit into 140 1 times, resulting in a remainder of 53.
The next digit of our result is 1. 
Result so far: 10458.26436781
The remainder is 53 after subtracting 87 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Our division results in 10458.26436781 with a remaining 5.3e-08.