We divide 870031 by 11
The aim is to understand the frequency of 11 in 870031.

On to step 1:
8 divided by 11 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 11

On to step 2:
11 can be fit into 87 7 times, resulting in a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 77 from 87, we get 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 11

On to step 3:
100 divided by 11 is 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 79.0
The remainder is 1 after subtracting 99 from 100.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 11

On to step 4:
11 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 790.0
The remainder is 10 after subtracting 0 from 10.
Bring next digit (3) of the dividend behind the 10 and repeat the process: 103 / 11

Going ahead to step 5:
11 can be fit into 103 9 times, resulting in a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 7909.0
The remainder is 4 after subtracting 99 from 103.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 11

On to step 6:
11 can be fit into 41 3 times, resulting in a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 79093.0
Subtracting 33 from 41 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
11 can be fit into 80 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 79093.7
The remainder is 3 after subtracting 77 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 8:
When dividing 30 by 11, we get 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 79093.72
The remainder is 8 after subtracting 22 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
When dividing 80 by 11, we get 7 with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 79093.727
Deduct 77 from 80 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 10:
30 divided by 11 is 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 79093.7272
Subtract 22 from 30 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 11:
11 goes into 80 7 times with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 79093.72727
If we subtract 77 from 80, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 12:
11 can be fit into 30 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 79093.727272
If we take 22 away from 30, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 13:
When dividing 80 by 11, we get 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 79093.7272727
Deduct 77 from 80 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 14:
If we divide 30 by 11, we get 2 and a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 79093.72727272
If we take 22 away from 30, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 79093.72727272, with a leftover of 8e-09.