Let's divide 687521 by 67
The aim is to understand the frequency of 67 in 687521.

Going ahead to step 1:
67 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 67

Step 2:
When dividing 68 by 67, we get 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 67 from 68, we get 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 67

Step 3:
If we divide 17 by 67, we get 0 and a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 10.0
The remainder is 17 after subtracting 0 from 17.
Fetch the next digit (5) from the dividend, attach it to 17 and continue: 175 / 67

On to step 4:
175 divided by 67 is 2 with a remainder of 41.
The number 2 becomes the next digit in our result. 
Result so far: 102.0
The remainder is 41 after subtracting 134 from 175.
Append the next digit (2) from the dividend to 41 and continue with: 412 / 67

Advancing to step 5:
412 divided by 67 is 6 with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 1026.0
Deduct 402 from 412 and we're left with 10.
Take the next digit (1) from the dividend and append it to 10, then repeat: 101 / 67

Going ahead to step 6:
67 goes into 101 1 times with a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 10261.0
Deduct 67 from 101 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 7:
67 can be fit into 340 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 10261.5
Deduct 335 from 340 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 8:
If we divide 50 by 67, we get 0 and a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 10261.5
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 9:
If we divide 500 by 67, we get 7 and a remainder of 31.
Use 7 as the next digit of our solution. 
Result so far: 10261.507
The remainder is 31 after subtracting 469 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 10:
67 can be fit into 310 4 times, resulting in a remainder of 42.
Put 4 as the next digit of the answer. 
Result so far: 10261.5074
If we take 268 away from 310, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 11:
The number 67 fits into 420 6 times, leaving a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 10261.50746
Subtracting 402 from 420 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 12:
67 can be fit into 180 2 times, resulting in a remainder of 46.
The next digit of our result is 2. 
Result so far: 10261.507462
The remainder is 46 after subtracting 134 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 13:
If we divide 460 by 67, we get 6 and a remainder of 58.
The number 6 becomes the next digit in our result. 
Result so far: 10261.5074626
Subtract 402 from 460 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 14:
When dividing 580 by 67, we get 8 with a remainder of 44.
Use 8 as the next digit of our solution. 
Result so far: 10261.50746268
Subtracting 536 from 580 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final outcome is 10261.50746268, with a leftover of 4.4e-08.