12051697 divided by 398 
The aim is to understand the frequency of 398 in 12051697.

On to step 1:
The number 398 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 398

On to step 2:
When dividing 12 by 398, we get 0 with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 398

Advancing to step 3:
120 divided by 398 is 0 with a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 120 after subtracting 0 from 120.
Bring next digit (5) of the dividend behind the 120 and repeat the process: 1205 / 398

Let's proceed to step 4:
398 can be fit into 1205 3 times, resulting in a remainder of 11.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 11 after subtracting 1194 from 1205.
Bring next digit (1) of the dividend behind the 11 and repeat the process: 111 / 398

Advancing to step 5:
The number 398 fits into 111 0 times, leaving a remainder of 111.
Put 0 as the next digit of the answer. 
Result so far: 30.0
Subtracting 0 from 111 leaves us with 111.
Bring next digit (6) of the dividend behind the 111 and repeat the process: 1116 / 398

Step 6:
If we divide 1116 by 398, we get 2 and a remainder of 320.
Record the quotient 2 as the next digit in the result. 
Result so far: 302.0
The remainder is 320 after subtracting 796 from 1116.
Append the next digit (9) from the dividend to 320 and continue with: 3209 / 398

Advancing to step 7:
When dividing 3209 by 398, we get 8 with a remainder of 25.
The next digit of our result is 8. 
Result so far: 3028.0
Subtract 3184 from 3209 to get 25.
Append the next digit (7) from the dividend to 25 and continue with: 257 / 398

Going ahead to step 8:
257 divided by 398 is 0 with a remainder of 257.
Use 0 as the next digit of our solution. 
Result so far: 30280.0
If we take 0 away from 257, we end up with 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Advancing to step 9:
398 goes into 2570 6 times with a remainder of 182.
Use 6 as the next digit of our solution. 
Result so far: 30280.6
The remainder is 182 after subtracting 2388 from 2570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

On to step 10:
1820 divided by 398 is 4 with a remainder of 228.
The next digit of our result is 4. 
Result so far: 30280.64
Subtracting 1592 from 1820 leaves us with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Advancing to step 11:
398 goes into 2280 5 times with a remainder of 290.
Put 5 as the next digit of the answer. 
Result so far: 30280.645
If we subtract 1990 from 2280, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 12:
The number 398 fits into 2900 7 times, leaving a remainder of 114.
Put 7 as the next digit of the answer. 
Result so far: 30280.6457
The remainder is 114 after subtracting 2786 from 2900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

On to step 13:
398 goes into 1140 2 times with a remainder of 344.
Put 2 as the next digit of the answer. 
Result so far: 30280.64572
If we take 796 away from 1140, we end up with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

On to step 14:
If we divide 3440 by 398, we get 8 and a remainder of 256.
Put 8 as the next digit of the answer. 
Result so far: 30280.645728
If we subtract 3184 from 3440, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Let's proceed to step 15:
398 goes into 2560 6 times with a remainder of 172.
Record the quotient 6 as the next digit in the result. 
Result so far: 30280.6457286
Subtract 2388 from 2560 to get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Step 16:
When dividing 1720 by 398, we get 4 with a remainder of 128.
The number 4 becomes the next digit in our result. 
Result so far: 30280.64572864
If we take 1592 away from 1720, we end up with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

The quotient of the division is 30280.64572864, and the remainder is 1.28e-07.