86898531 ÷ 146 
The aim is to understand the frequency of 146 in 86898531.

Step 1:
When dividing 8 by 146, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 146

Going ahead to step 2:
When dividing 86 by 146, we get 0 with a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Take the next digit (8) from the dividend and append it to 86, then repeat: 868 / 146

Advancing to step 3:
When dividing 868 by 146, we get 5 with a remainder of 138.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 138 after subtracting 730 from 868.
Bring next digit (9) of the dividend behind the 138 and repeat the process: 1389 / 146

Let's proceed to step 4:
If we divide 1389 by 146, we get 9 and a remainder of 75.
The next digit of our result is 9. 
Result so far: 59.0
If we take 1314 away from 1389, we end up with 75.
Bring next digit (8) of the dividend behind the 75 and repeat the process: 758 / 146

Going ahead to step 5:
758 divided by 146 is 5 with a remainder of 28.
Write down 5 as next digit of the result. 
Result so far: 595.0
Deduct 730 from 758 and we're left with 28.
Include the next digit (5) from the dividend after 28, then repeat: 285 / 146

Going ahead to step 6:
146 goes into 285 1 times with a remainder of 139.
Put 1 as the next digit of the answer. 
Result so far: 5951.0
Subtract 146 from 285 to get 139.
Fetch the next digit (3) from the dividend, attach it to 139 and continue: 1393 / 146

Let's proceed to step 7:
146 goes into 1393 9 times with a remainder of 79.
Record the quotient 9 as the next digit in the result. 
Result so far: 59519.0
Subtract 1314 from 1393 to get 79.
Append the next digit (1) from the dividend to 79 and continue with: 791 / 146

Going ahead to step 8:
The number 146 fits into 791 5 times, leaving a remainder of 61.
Put 5 as the next digit of the answer. 
Result so far: 595195.0
If we take 730 away from 791, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 9:
146 can be fit into 610 4 times, resulting in a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 595195.4
Subtracting 584 from 610 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 10:
260 divided by 146 is 1 with a remainder of 114.
The next digit of our result is 1. 
Result so far: 595195.41
Subtract 146 from 260 to get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Moving on to step 11:
If we divide 1140 by 146, we get 7 and a remainder of 118.
The next digit of our result is 7. 
Result so far: 595195.417
If we take 1022 away from 1140, we end up with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Step 12:
146 goes into 1180 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 595195.4178
If we subtract 1168 from 1180, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 13:
120 divided by 146 is 0 with a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 595195.4178
Subtracting 0 from 120 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 14:
1200 divided by 146 is 8 with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 595195.417808
Subtracting 1168 from 1200 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 15:
If we divide 320 by 146, we get 2 and a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 595195.4178082
Subtract 292 from 320 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 16:
146 can be fit into 280 1 times, resulting in a remainder of 134.
The next digit of our result is 1. 
Result so far: 595195.41780821
If we subtract 146 from 280, we get 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

The final result is 595195.41780821 with a remainder of 1.34e-07.