12846350 divided by 873 
The aim is to understand the frequency of 873 in 12846350.

On to step 1:
873 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 873

Advancing to step 2:
873 can be fit into 12 0 times, resulting in a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Take the next digit (8) from the dividend and append it to 12, then repeat: 128 / 873

Advancing to step 3:
If we divide 128 by 873, we get 0 and a remainder of 128.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 128, we get 128.
Append the next digit (4) from the dividend to 128 and continue with: 1284 / 873

On to step 4:
The number 873 fits into 1284 1 times, leaving a remainder of 411.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 873 from 1284 to get 411.
Fetch the next digit (6) from the dividend, attach it to 411 and continue: 4116 / 873

Advancing to step 5:
873 goes into 4116 4 times with a remainder of 624.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we take 3492 away from 4116, we end up with 624.
Include the next digit (3) from the dividend after 624, then repeat: 6243 / 873

Let's proceed to step 6:
873 goes into 6243 7 times with a remainder of 132.
Put 7 as the next digit of the answer. 
Result so far: 147.0
If we take 6111 away from 6243, we end up with 132.
Append the next digit (5) from the dividend to 132 and continue with: 1325 / 873

Advancing to step 7:
873 goes into 1325 1 times with a remainder of 452.
Write down 1 as next digit of the result. 
Result so far: 1471.0
Deduct 873 from 1325 and we're left with 452.
Grab the next digit (0) from the dividend, add it to 452, then carry on: 4520 / 873

Step 8:
When dividing 4520 by 873, we get 5 with a remainder of 155.
Put 5 as the next digit of the answer. 
Result so far: 14715.0
If we take 4365 away from 4520, we end up with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Going ahead to step 9:
873 can be fit into 1550 1 times, resulting in a remainder of 677.
Write down 1 as next digit of the result. 
Result so far: 14715.1
Subtract 873 from 1550 to get 677.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6770, and continue the process.

Let's proceed to step 10:
The number 873 fits into 6770 7 times, leaving a remainder of 659.
The next digit of our result is 7. 
Result so far: 14715.17
If we subtract 6111 from 6770, we get 659.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6590, and continue the process.

Let's proceed to step 11:
When dividing 6590 by 873, we get 7 with a remainder of 479.
Use 7 as the next digit of our solution. 
Result so far: 14715.177
Subtract 6111 from 6590 to get 479.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4790, and continue the process.

After the division, we end up with 14715.177 and a remainder of 0.0479.