16080954 ÷ 873 
The aim is to understand the frequency of 873 in 16080954.

Advancing to step 1:
If we divide 1 by 873, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 873

Advancing to step 2:
If we divide 16 by 873, we get 0 and a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Take the next digit (0) from the dividend and append it to 16, then repeat: 160 / 873

Moving on to step 3:
When dividing 160 by 873, we get 0 with a remainder of 160.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 160, we end up with 160.
Include the next digit (8) from the dividend after 160, then repeat: 1608 / 873

Step 4:
873 can be fit into 1608 1 times, resulting in a remainder of 735.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 735 after subtracting 873 from 1608.
Fetch the next digit (0) from the dividend, attach it to 735 and continue: 7350 / 873

Going ahead to step 5:
873 goes into 7350 8 times with a remainder of 366.
Write down 8 as next digit of the result. 
Result so far: 18.0
Deduct 6984 from 7350 and we're left with 366.
Fetch the next digit (9) from the dividend, attach it to 366 and continue: 3669 / 873

Moving on to step 6:
If we divide 3669 by 873, we get 4 and a remainder of 177.
Write down 4 as next digit of the result. 
Result so far: 184.0
If we subtract 3492 from 3669, we get 177.
Grab the next digit (5) from the dividend, add it to 177, then carry on: 1775 / 873

Going ahead to step 7:
873 goes into 1775 2 times with a remainder of 29.
Put 2 as the next digit of the answer. 
Result so far: 1842.0
The remainder is 29 after subtracting 1746 from 1775.
Append the next digit (4) from the dividend to 29 and continue with: 294 / 873

On to step 8:
The number 873 fits into 294 0 times, leaving a remainder of 294.
Record the quotient 0 as the next digit in the result. 
Result so far: 18420.0
The remainder is 294 after subtracting 0 from 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Going ahead to step 9:
2940 divided by 873 is 3 with a remainder of 321.
The next digit of our result is 3. 
Result so far: 18420.3
If we subtract 2619 from 2940, we get 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

Advancing to step 10:
When dividing 3210 by 873, we get 3 with a remainder of 591.
Write down 3 as next digit of the result. 
Result so far: 18420.33
The remainder is 591 after subtracting 2619 from 3210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5910, and continue the process.

The quotient of the division is 18420.33, and the remainder is 0.591.