Let's divide 998410 by 1
The aim is to understand the frequency of 1 in 998410.

Moving on to step 1:
1 goes into 9 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
The remainder is 0 after subtracting 9 from 9.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 1

Moving on to step 2:
9 divided by 1 is 9 with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
The remainder is 0 after subtracting 9 from 9.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 1

On to step 3:
1 can be fit into 8 8 times, resulting in a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 998.0
Deduct 8 from 8 and we're left with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 1

Advancing to step 4:
4 divided by 1 is 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 9984.0
Subtracting 4 from 4 leaves us with 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 1

Going ahead to step 5:
The number 1 fits into 1 1 times, leaving a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 99841.0
If we subtract 1 from 1, we get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 1

Going ahead to step 6:
1 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 998410.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
If we divide 0 by 1, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 998410.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 1, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 998410.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 998410.0 with a remaining 0.0.