Let's divide 81813451 by 671
The aim is to understand the frequency of 671 in 81813451.

Advancing to step 1:
671 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 671

Step 2:
671 can be fit into 81 0 times, resulting in a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Fetch the next digit (8) from the dividend, attach it to 81 and continue: 818 / 671

Let's proceed to step 3:
818 divided by 671 is 1 with a remainder of 147.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 671 away from 818, we end up with 147.
Grab the next digit (1) from the dividend, add it to 147, then carry on: 1471 / 671

Let's proceed to step 4:
If we divide 1471 by 671, we get 2 and a remainder of 129.
The next digit of our result is 2. 
Result so far: 12.0
Deduct 1342 from 1471 and we're left with 129.
Take the next digit (3) from the dividend and append it to 129, then repeat: 1293 / 671

Moving on to step 5:
The number 671 fits into 1293 1 times, leaving a remainder of 622.
The next digit of our result is 1. 
Result so far: 121.0
The remainder is 622 after subtracting 671 from 1293.
Grab the next digit (4) from the dividend, add it to 622, then carry on: 6224 / 671

Let's proceed to step 6:
671 goes into 6224 9 times with a remainder of 185.
The next digit of our result is 9. 
Result so far: 1219.0
If we subtract 6039 from 6224, we get 185.
Take the next digit (5) from the dividend and append it to 185, then repeat: 1855 / 671

Let's proceed to step 7:
1855 divided by 671 is 2 with a remainder of 513.
Use 2 as the next digit of our solution. 
Result so far: 12192.0
Subtract 1342 from 1855 to get 513.
Append the next digit (1) from the dividend to 513 and continue with: 5131 / 671

Let's proceed to step 8:
671 goes into 5131 7 times with a remainder of 434.
The number 7 becomes the next digit in our result. 
Result so far: 121927.0
Subtract 4697 from 5131 to get 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Going ahead to step 9:
The number 671 fits into 4340 6 times, leaving a remainder of 314.
Write down 6 as next digit of the result. 
Result so far: 121927.6
If we take 4026 away from 4340, we end up with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Going ahead to step 10:
If we divide 3140 by 671, we get 4 and a remainder of 456.
Write down 4 as next digit of the result. 
Result so far: 121927.64
Subtracting 2684 from 3140 leaves us with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Moving on to step 11:
4560 divided by 671 is 6 with a remainder of 534.
The number 6 becomes the next digit in our result. 
Result so far: 121927.646
The remainder is 534 after subtracting 4026 from 4560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Moving on to step 12:
If we divide 5340 by 671, we get 7 and a remainder of 643.
Write down 7 as next digit of the result. 
Result so far: 121927.6467
The remainder is 643 after subtracting 4697 from 5340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6430, and continue the process.

Advancing to step 13:
The number 671 fits into 6430 9 times, leaving a remainder of 391.
Use 9 as the next digit of our solution. 
Result so far: 121927.64679
If we take 6039 away from 6430, we end up with 391.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3910, and continue the process.

Advancing to step 14:
When dividing 3910 by 671, we get 5 with a remainder of 555.
Record the quotient 5 as the next digit in the result. 
Result so far: 121927.646795
If we take 3355 away from 3910, we end up with 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

Let's proceed to step 15:
671 goes into 5550 8 times with a remainder of 182.
The next digit of our result is 8. 
Result so far: 121927.6467958
Subtracting 5368 from 5550 leaves us with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

On to step 16:
671 can be fit into 1820 2 times, resulting in a remainder of 478.
Record the quotient 2 as the next digit in the result. 
Result so far: 121927.64679582
Deduct 1342 from 1820 and we're left with 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

In conclusion, the division gives 121927.64679582 with a balance of 4.78e-07.