Let's divide 67872069 by 671
The aim is to understand the frequency of 671 in 67872069.

Step 1:
671 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 671

Advancing to step 2:
671 can be fit into 67 0 times, resulting in a remainder of 67.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 67 leaves us with 67.
Take the next digit (8) from the dividend and append it to 67, then repeat: 678 / 671

Step 3:
The number 671 fits into 678 1 times, leaving a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 671 from 678 leaves us with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 671

Going ahead to step 4:
When dividing 77 by 671, we get 0 with a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 77 to get 77.
Append the next digit (2) from the dividend to 77 and continue with: 772 / 671

Going ahead to step 5:
772 divided by 671 is 1 with a remainder of 101.
Put 1 as the next digit of the answer. 
Result so far: 101.0
If we take 671 away from 772, we end up with 101.
Grab the next digit (0) from the dividend, add it to 101, then carry on: 1010 / 671

On to step 6:
If we divide 1010 by 671, we get 1 and a remainder of 339.
Put 1 as the next digit of the answer. 
Result so far: 1011.0
If we subtract 671 from 1010, we get 339.
Grab the next digit (6) from the dividend, add it to 339, then carry on: 3396 / 671

Moving on to step 7:
671 goes into 3396 5 times with a remainder of 41.
Write down 5 as next digit of the result. 
Result so far: 10115.0
Deduct 3355 from 3396 and we're left with 41.
Fetch the next digit (9) from the dividend, attach it to 41 and continue: 419 / 671

Moving on to step 8:
419 divided by 671 is 0 with a remainder of 419.
Put 0 as the next digit of the answer. 
Result so far: 101150.0
Deduct 0 from 419 and we're left with 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Going ahead to step 9:
671 goes into 4190 6 times with a remainder of 164.
Use 6 as the next digit of our solution. 
Result so far: 101150.6
Subtract 4026 from 4190 to get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Going ahead to step 10:
671 goes into 1640 2 times with a remainder of 298.
Use 2 as the next digit of our solution. 
Result so far: 101150.62
If we subtract 1342 from 1640, we get 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

On to step 11:
671 goes into 2980 4 times with a remainder of 296.
Write down 4 as next digit of the result. 
Result so far: 101150.624
Subtract 2684 from 2980 to get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Let's proceed to step 12:
671 can be fit into 2960 4 times, resulting in a remainder of 276.
Record the quotient 4 as the next digit in the result. 
Result so far: 101150.6244
Deduct 2684 from 2960 and we're left with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

The final outcome is 101150.6244, with a leftover of 0.00276.