Let's divide 98529861 by 407
The aim is to understand the frequency of 407 in 98529861.

Moving on to step 1:
If we divide 9 by 407, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 407

Going ahead to step 2:
When dividing 98 by 407, we get 0 with a remainder of 98.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 98 and we're left with 98.
Bring next digit (5) of the dividend behind the 98 and repeat the process: 985 / 407

Advancing to step 3:
407 goes into 985 2 times with a remainder of 171.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 814 away from 985, we end up with 171.
Include the next digit (2) from the dividend after 171, then repeat: 1712 / 407

Let's proceed to step 4:
407 goes into 1712 4 times with a remainder of 84.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Subtracting 1628 from 1712 leaves us with 84.
Append the next digit (9) from the dividend to 84 and continue with: 849 / 407

Step 5:
The number 407 fits into 849 2 times, leaving a remainder of 35.
Put 2 as the next digit of the answer. 
Result so far: 242.0
If we subtract 814 from 849, we get 35.
Include the next digit (8) from the dividend after 35, then repeat: 358 / 407

Advancing to step 6:
When dividing 358 by 407, we get 0 with a remainder of 358.
The number 0 becomes the next digit in our result. 
Result so far: 2420.0
Subtracting 0 from 358 leaves us with 358.
Take the next digit (6) from the dividend and append it to 358, then repeat: 3586 / 407

On to step 7:
If we divide 3586 by 407, we get 8 and a remainder of 330.
Use 8 as the next digit of our solution. 
Result so far: 24208.0
If we subtract 3256 from 3586, we get 330.
Take the next digit (1) from the dividend and append it to 330, then repeat: 3301 / 407

On to step 8:
407 can be fit into 3301 8 times, resulting in a remainder of 45.
The number 8 becomes the next digit in our result. 
Result so far: 242088.0
If we take 3256 away from 3301, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 9:
407 can be fit into 450 1 times, resulting in a remainder of 43.
Put 1 as the next digit of the answer. 
Result so far: 242088.1
The remainder is 43 after subtracting 407 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 10:
407 can be fit into 430 1 times, resulting in a remainder of 23.
The next digit of our result is 1. 
Result so far: 242088.11
Deduct 407 from 430 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The final outcome is 242088.11, with a leftover of 0.023.