86081969 divided by 398 
The aim is to understand the frequency of 398 in 86081969.

Going ahead to step 1:
398 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 398

Going ahead to step 2:
398 can be fit into 86 0 times, resulting in a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Include the next digit (0) from the dividend after 86, then repeat: 860 / 398

Moving on to step 3:
398 can be fit into 860 2 times, resulting in a remainder of 64.
The next digit of our result is 2. 
Result so far: 2.0
If we take 796 away from 860, we end up with 64.
Bring next digit (8) of the dividend behind the 64 and repeat the process: 648 / 398

Let's proceed to step 4:
If we divide 648 by 398, we get 1 and a remainder of 250.
Put 1 as the next digit of the answer. 
Result so far: 21.0
The remainder is 250 after subtracting 398 from 648.
Append the next digit (1) from the dividend to 250 and continue with: 2501 / 398

Moving on to step 5:
398 can be fit into 2501 6 times, resulting in a remainder of 113.
Write down 6 as next digit of the result. 
Result so far: 216.0
If we subtract 2388 from 2501, we get 113.
Take the next digit (9) from the dividend and append it to 113, then repeat: 1139 / 398

Step 6:
If we divide 1139 by 398, we get 2 and a remainder of 343.
Write down 2 as next digit of the result. 
Result so far: 2162.0
If we take 796 away from 1139, we end up with 343.
Fetch the next digit (6) from the dividend, attach it to 343 and continue: 3436 / 398

Step 7:
398 can be fit into 3436 8 times, resulting in a remainder of 252.
Record the quotient 8 as the next digit in the result. 
Result so far: 21628.0
Deduct 3184 from 3436 and we're left with 252.
Bring next digit (9) of the dividend behind the 252 and repeat the process: 2529 / 398

Going ahead to step 8:
398 can be fit into 2529 6 times, resulting in a remainder of 141.
Record the quotient 6 as the next digit in the result. 
Result so far: 216286.0
If we take 2388 away from 2529, we end up with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Going ahead to step 9:
398 can be fit into 1410 3 times, resulting in a remainder of 216.
The next digit of our result is 3. 
Result so far: 216286.3
If we subtract 1194 from 1410, we get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Advancing to step 10:
398 can be fit into 2160 5 times, resulting in a remainder of 170.
The next digit of our result is 5. 
Result so far: 216286.35
The remainder is 170 after subtracting 1990 from 2160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 11:
If we divide 1700 by 398, we get 4 and a remainder of 108.
Put 4 as the next digit of the answer. 
Result so far: 216286.354
If we take 1592 away from 1700, we end up with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Step 12:
If we divide 1080 by 398, we get 2 and a remainder of 284.
Record the quotient 2 as the next digit in the result. 
Result so far: 216286.3542
The remainder is 284 after subtracting 796 from 1080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Step 13:
398 goes into 2840 7 times with a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 216286.35427
Deduct 2786 from 2840 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 14:
398 can be fit into 540 1 times, resulting in a remainder of 142.
Put 1 as the next digit of the answer. 
Result so far: 216286.354271
If we take 398 away from 540, we end up with 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Step 15:
The number 398 fits into 1420 3 times, leaving a remainder of 226.
Use 3 as the next digit of our solution. 
Result so far: 216286.3542713
Subtracting 1194 from 1420 leaves us with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

On to step 16:
398 can be fit into 2260 5 times, resulting in a remainder of 270.
Use 5 as the next digit of our solution. 
Result so far: 216286.35427135
Subtract 1990 from 2260 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

The final result is 216286.35427135 with a remainder of 2.7e-07.