We look at the division of 784264 by 87 
The aim is to understand the frequency of 87 in 784264.

Advancing to step 1:
7 divided by 87 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 87

Step 2:
When dividing 78 by 87, we get 0 with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Append the next digit (4) from the dividend to 78 and continue with: 784 / 87

Going ahead to step 3:
87 goes into 784 9 times with a remainder of 1.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 783 from 784 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 87

Going ahead to step 4:
87 goes into 12 0 times with a remainder of 12.
The next digit of our result is 0. 
Result so far: 90.0
If we subtract 0 from 12, we get 12.
Take the next digit (6) from the dividend and append it to 12, then repeat: 126 / 87

Moving on to step 5:
87 can be fit into 126 1 times, resulting in a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 901.0
The remainder is 39 after subtracting 87 from 126.
Append the next digit (4) from the dividend to 39 and continue with: 394 / 87

Moving on to step 6:
If we divide 394 by 87, we get 4 and a remainder of 46.
Put 4 as the next digit of the answer. 
Result so far: 9014.0
If we take 348 away from 394, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 7:
460 divided by 87 is 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 9014.5
If we take 435 away from 460, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 8:
When dividing 250 by 87, we get 2 with a remainder of 76.
Put 2 as the next digit of the answer. 
Result so far: 9014.52
Subtract 174 from 250 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 9:
If we divide 760 by 87, we get 8 and a remainder of 64.
Record the quotient 8 as the next digit in the result. 
Result so far: 9014.528
Subtracting 696 from 760 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 10:
87 can be fit into 640 7 times, resulting in a remainder of 31.
The next digit of our result is 7. 
Result so far: 9014.5287
Deduct 609 from 640 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 11:
87 goes into 310 3 times with a remainder of 49.
The number 3 becomes the next digit in our result. 
Result so far: 9014.52873
Deduct 261 from 310 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 12:
87 goes into 490 5 times with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 9014.528735
If we take 435 away from 490, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 13:
550 divided by 87 is 6 with a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 9014.5287356
Deduct 522 from 550 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 14:
When dividing 280 by 87, we get 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 9014.52873563
Deduct 261 from 280 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Our division results in 9014.52873563 with a remaining 1.9e-08.