86558868 ÷ 145 
The aim is to understand the frequency of 145 in 86558868.

Going ahead to step 1:
8 divided by 145 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 145

Moving on to step 2:
If we divide 86 by 145, we get 0 and a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Fetch the next digit (5) from the dividend, attach it to 86 and continue: 865 / 145

Advancing to step 3:
865 divided by 145 is 5 with a remainder of 140.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 725 from 865 to get 140.
Fetch the next digit (5) from the dividend, attach it to 140 and continue: 1405 / 145

Advancing to step 4:
The number 145 fits into 1405 9 times, leaving a remainder of 100.
Put 9 as the next digit of the answer. 
Result so far: 59.0
If we take 1305 away from 1405, we end up with 100.
Append the next digit (8) from the dividend to 100 and continue with: 1008 / 145

Going ahead to step 5:
If we divide 1008 by 145, we get 6 and a remainder of 138.
Record the quotient 6 as the next digit in the result. 
Result so far: 596.0
Deduct 870 from 1008 and we're left with 138.
Append the next digit (8) from the dividend to 138 and continue with: 1388 / 145

On to step 6:
145 goes into 1388 9 times with a remainder of 83.
Write down 9 as next digit of the result. 
Result so far: 5969.0
Subtracting 1305 from 1388 leaves us with 83.
Fetch the next digit (6) from the dividend, attach it to 83 and continue: 836 / 145

Advancing to step 7:
If we divide 836 by 145, we get 5 and a remainder of 111.
Put 5 as the next digit of the answer. 
Result so far: 59695.0
Subtract 725 from 836 to get 111.
Bring next digit (8) of the dividend behind the 111 and repeat the process: 1118 / 145

Going ahead to step 8:
If we divide 1118 by 145, we get 7 and a remainder of 103.
The number 7 becomes the next digit in our result. 
Result so far: 596957.0
Deduct 1015 from 1118 and we're left with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Advancing to step 9:
When dividing 1030 by 145, we get 7 with a remainder of 15.
The next digit of our result is 7. 
Result so far: 596957.7
The remainder is 15 after subtracting 1015 from 1030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 10:
If we divide 150 by 145, we get 1 and a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 596957.71
If we take 145 away from 150, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 11:
145 can be fit into 50 0 times, resulting in a remainder of 50.
The next digit of our result is 0. 
Result so far: 596957.71
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 12:
500 divided by 145 is 3 with a remainder of 65.
Put 3 as the next digit of the answer. 
Result so far: 596957.7103
If we take 435 away from 500, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 13:
145 goes into 650 4 times with a remainder of 70.
Write down 4 as next digit of the result. 
Result so far: 596957.71034
The remainder is 70 after subtracting 580 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 14:
If we divide 700 by 145, we get 4 and a remainder of 120.
The next digit of our result is 4. 
Result so far: 596957.710344
Deduct 580 from 700 and we're left 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.

The final outcome is 596957.710344, with a leftover of 1.2e-05.