951907 ÷ 81 
The aim is to understand the frequency of 81 in 951907.

Moving on to step 1:
81 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (5) from the dividend, add it to 9, then carry on: 95 / 81

Going ahead to step 2:
95 divided by 81 is 1 with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 81 from 95 and we're left with 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 81

Moving on to step 3:
81 goes into 141 1 times with a remainder of 60.
Write down 1 as next digit of the result. 
Result so far: 11.0
If we subtract 81 from 141, we get 60.
Grab the next digit (9) from the dividend, add it to 60, then carry on: 609 / 81

Advancing to step 4:
609 divided by 81 is 7 with a remainder of 42.
Record the quotient 7 as the next digit in the result. 
Result so far: 117.0
The remainder is 42 after subtracting 567 from 609.
Include the next digit (0) from the dividend after 42, then repeat: 420 / 81

Going ahead to step 5:
When dividing 420 by 81, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 1175.0
If we subtract 405 from 420, we get 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 81

Going ahead to step 6:
The number 81 fits into 157 1 times, leaving a remainder of 76.
The next digit of our result is 1. 
Result so far: 11751.0
The remainder is 76 after subtracting 81 from 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 7:
760 divided by 81 is 9 with a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 11751.9
The remainder is 31 after subtracting 729 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 8:
310 divided by 81 is 3 with a remainder of 67.
Use 3 as the next digit of our solution. 
Result so far: 11751.93
Deduct 243 from 310 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 9:
If we divide 670 by 81, we get 8 and a remainder of 22.
The next digit of our result is 8. 
Result so far: 11751.938
If we take 648 away from 670, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 10:
When dividing 220 by 81, we get 2 with a remainder of 58.
Use 2 as the next digit of our solution. 
Result so far: 11751.9382
Subtracting 162 from 220 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 11:
The number 81 fits into 580 7 times, leaving a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 11751.93827
If we subtract 567 from 580, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 12:
81 can be fit into 130 1 times, resulting in a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 11751.938271
Subtracting 81 from 130 leaves us 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.

Going ahead to step 13:
81 goes into 490 6 times with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 11751.9382716
Deduct 486 from 490 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 14:
81 goes into 40 0 times with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 11751.9382716
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 11751.9382716 and a remainder of 4e-08.