81346391 ÷ 898 
The aim is to understand the frequency of 898 in 81346391.

Moving on to step 1:
The number 898 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 898

Moving on to step 2:
If we divide 81 by 898, we get 0 and a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Include the next digit (3) from the dividend after 81, then repeat: 813 / 898

Going ahead to step 3:
813 divided by 898 is 0 with a remainder of 813.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 813, we get 813.
Bring next digit (4) of the dividend behind the 813 and repeat the process: 8134 / 898

Step 4:
The number 898 fits into 8134 9 times, leaving a remainder of 52.
The next digit of our result is 9. 
Result so far: 9.0
Subtracting 8082 from 8134 leaves us with 52.
Include the next digit (6) from the dividend after 52, then repeat: 526 / 898

Advancing to step 5:
The number 898 fits into 526 0 times, leaving a remainder of 526.
The next digit of our result is 0. 
Result so far: 90.0
If we take 0 away from 526, we end up with 526.
Include the next digit (3) from the dividend after 526, then repeat: 5263 / 898

Let's proceed to step 6:
The number 898 fits into 5263 5 times, leaving a remainder of 773.
Put 5 as the next digit of the answer. 
Result so far: 905.0
The remainder is 773 after subtracting 4490 from 5263.
Take the next digit (9) from the dividend and append it to 773, then repeat: 7739 / 898

Going ahead to step 7:
898 goes into 7739 8 times with a remainder of 555.
Use 8 as the next digit of our solution. 
Result so far: 9058.0
The remainder is 555 after subtracting 7184 from 7739.
Take the next digit (1) from the dividend and append it to 555, then repeat: 5551 / 898

Advancing to step 8:
898 goes into 5551 6 times with a remainder of 163.
Record the quotient 6 as the next digit in the result. 
Result so far: 90586.0
If we subtract 5388 from 5551, we get 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

On to step 9:
The number 898 fits into 1630 1 times, leaving a remainder of 732.
Put 1 as the next digit of the answer. 
Result so far: 90586.1
If we take 898 away from 1630, we end up with 732.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7320, and continue the process.

Going ahead to step 10:
7320 divided by 898 is 8 with a remainder of 136.
Use 8 as the next digit of our solution. 
Result so far: 90586.18
The remainder is 136 after subtracting 7184 from 7320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 11:
If we divide 1360 by 898, we get 1 and a remainder of 462.
Use 1 as the next digit of our solution. 
Result so far: 90586.181
Subtracting 898 from 1360 leaves us with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Advancing to step 12:
When dividing 4620 by 898, we get 5 with a remainder of 130.
The next digit of our result is 5. 
Result so far: 90586.1815
Subtract 4490 from 4620 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.

Advancing to step 13:
1300 divided by 898 is 1 with a remainder of 402.
The number 1 becomes the next digit in our result. 
Result so far: 90586.18151
If we subtract 898 from 1300, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Let's proceed to step 14:
4020 divided by 898 is 4 with a remainder of 428.
Put 4 as the next digit of the answer. 
Result so far: 90586.181514
If we take 3592 away from 4020, we end up with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Let's proceed to step 15:
If we divide 4280 by 898, we get 4 and a remainder of 688.
Write down 4 as next digit of the result. 
Result so far: 90586.1815144
Deduct 3592 from 4280 and we're left with 688.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6880, and continue the process.

The final outcome is 90586.1815144, with a leftover of 6.88e-06.