We divide 12005532 by 398
The aim is to understand the frequency of 398 in 12005532.

Moving on to step 1:
If we divide 1 by 398, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 398

Advancing to step 2:
The number 398 fits into 12 0 times, leaving a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Include the next digit (0) from the dividend after 12, then repeat: 120 / 398

Going ahead to step 3:
If we divide 120 by 398, we get 0 and a remainder of 120.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 120 after subtracting 0 from 120.
Include the next digit (0) from the dividend after 120, then repeat: 1200 / 398

Step 4:
1200 divided by 398 is 3 with a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 1194 from 1200 leaves us with 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 398

Advancing to step 5:
398 goes into 65 0 times with a remainder of 65.
Put 0 as the next digit of the answer. 
Result so far: 30.0
If we subtract 0 from 65, we get 65.
Fetch the next digit (5) from the dividend, attach it to 65 and continue: 655 / 398

Step 6:
If we divide 655 by 398, we get 1 and a remainder of 257.
Put 1 as the next digit of the answer. 
Result so far: 301.0
Deduct 398 from 655 and we're left with 257.
Include the next digit (3) from the dividend after 257, then repeat: 2573 / 398

Moving on to step 7:
398 goes into 2573 6 times with a remainder of 185.
Put 6 as the next digit of the answer. 
Result so far: 3016.0
Deduct 2388 from 2573 and we're left with 185.
Include the next digit (2) from the dividend after 185, then repeat: 1852 / 398

Moving on to step 8:
398 goes into 1852 4 times with a remainder of 260.
Put 4 as the next digit of the answer. 
Result so far: 30164.0
If we subtract 1592 from 1852, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

On to step 9:
398 can be fit into 2600 6 times, resulting in a remainder of 212.
Write down 6 as next digit of the result. 
Result so far: 30164.6
Subtract 2388 from 2600 to get 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 10:
398 goes into 2120 5 times with a remainder of 130.
Record the quotient 5 as the next digit in the result. 
Result so far: 30164.65
Subtract 1990 from 2120 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

On to step 11:
When dividing 1300 by 398, we get 3 with a remainder of 106.
Use 3 as the next digit of our solution. 
Result so far: 30164.653
Subtracting 1194 from 1300 leaves us with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Moving on to step 12:
1060 divided by 398 is 2 with a remainder of 264.
Record the quotient 2 as the next digit in the result. 
Result so far: 30164.6532
The remainder is 264 after subtracting 796 from 1060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Advancing to step 13:
398 can be fit into 2640 6 times, resulting in a remainder of 252.
Use 6 as the next digit of our solution. 
Result so far: 30164.65326
Subtract 2388 from 2640 to get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

On to step 14:
When dividing 2520 by 398, we get 6 with a remainder of 132.
Use 6 as the next digit of our solution. 
Result so far: 30164.653266
The remainder is 132 after subtracting 2388 from 2520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

The quotient of the division is 30164.653266, and the remainder is 1.32e-05.