We're dividing 63346746 by 87 
The aim is to understand the frequency of 87 in 63346746.

Step 1:
The number 87 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 87

Advancing to step 2:
87 can be fit into 63 0 times, resulting in a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 63 leaves us with 63.
Take the next digit (3) from the dividend and append it to 63, then repeat: 633 / 87

On to step 3:
633 divided by 87 is 7 with a remainder of 24.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 609 away from 633, we end up with 24.
Fetch the next digit (4) from the dividend, attach it to 24 and continue: 244 / 87

Going ahead to step 4:
244 divided by 87 is 2 with a remainder of 70.
Put 2 as the next digit of the answer. 
Result so far: 72.0
Subtract 174 from 244 to get 70.
Fetch the next digit (6) from the dividend, attach it to 70 and continue: 706 / 87

Moving on to step 5:
When dividing 706 by 87, we get 8 with a remainder of 10.
The next digit of our result is 8. 
Result so far: 728.0
Subtract 696 from 706 to get 10.
Include the next digit (7) from the dividend after 10, then repeat: 107 / 87

Let's proceed to step 6:
When dividing 107 by 87, we get 1 with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 7281.0
The remainder is 20 after subtracting 87 from 107.
Include the next digit (4) from the dividend after 20, then repeat: 204 / 87

Going ahead to step 7:
204 divided by 87 is 2 with a remainder of 30.
The next digit of our result is 2. 
Result so far: 72812.0
The remainder is 30 after subtracting 174 from 204.
Include the next digit (6) from the dividend after 30, then repeat: 306 / 87

Going ahead to step 8:
306 divided by 87 is 3 with a remainder of 45.
The number 3 becomes the next digit in our result. 
Result so far: 728123.0
If we subtract 261 from 306, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 9:
87 can be fit into 450 5 times, resulting in a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 728123.5
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.

Let's proceed to step 10:
87 goes into 150 1 times with a remainder of 63.
Use 1 as the next digit of our solution. 
Result so far: 728123.51
Deduct 87 from 150 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 11:
When dividing 630 by 87, we get 7 with a remainder of 21.
The next digit of our result is 7. 
Result so far: 728123.517
Subtract 609 from 630 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 12:
87 goes into 210 2 times with a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 728123.5172
Subtracting 174 from 210 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 13:
360 divided by 87 is 4 with a remainder of 12.
The next digit of our result is 4. 
Result so far: 728123.51724
If we take 348 away from 360, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 14:
120 divided by 87 is 1 with a remainder of 33.
Use 1 as the next digit of our solution. 
Result so far: 728123.517241
The remainder is 33 after subtracting 87 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 15:
When dividing 330 by 87, we get 3 with a remainder of 69.
The next digit of our result is 3. 
Result so far: 728123.5172413
If we take 261 away from 330, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 16:
If we divide 690 by 87, we get 7 and a remainder of 81.
Use 7 as the next digit of our solution. 
Result so far: 728123.51724137
The remainder is 81 after subtracting 609 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

The final outcome is 728123.51724137, with a leftover of 8.1e-08.