We look at the division of 90511026 by 140 
The aim is to understand the frequency of 140 in 90511026.

Step 1:
When dividing 9 by 140, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 140

Let's proceed to step 2:
If we divide 90 by 140, we get 0 and a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 90 leaves us with 90.
Grab the next digit (5) from the dividend, add it to 90, then carry on: 905 / 140

Moving on to step 3:
905 divided by 140 is 6 with a remainder of 65.
The next digit of our result is 6. 
Result so far: 6.0
Subtracting 840 from 905 leaves us with 65.
Take the next digit (1) from the dividend and append it to 65, then repeat: 651 / 140

Going ahead to step 4:
If we divide 651 by 140, we get 4 and a remainder of 91.
Put 4 as the next digit of the answer. 
Result so far: 64.0
Subtract 560 from 651 to get 91.
Include the next digit (1) from the dividend after 91, then repeat: 911 / 140

Moving on to step 5:
911 divided by 140 is 6 with a remainder of 71.
The next digit of our result is 6. 
Result so far: 646.0
Deduct 840 from 911 and we're left with 71.
Take the next digit (0) from the dividend and append it to 71, then repeat: 710 / 140

Moving on to step 6:
The number 140 fits into 710 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 6465.0
If we take 700 away from 710, we end up with 10.
Include the next digit (2) from the dividend after 10, then repeat: 102 / 140

On to step 7:
If we divide 102 by 140, we get 0 and a remainder of 102.
Put 0 as the next digit of the answer. 
Result so far: 64650.0
Deduct 0 from 102 and we're left with 102.
Grab the next digit (6) from the dividend, add it to 102, then carry on: 1026 / 140

Going ahead to step 8:
When dividing 1026 by 140, we get 7 with a remainder of 46.
The number 7 becomes the next digit in our result. 
Result so far: 646507.0
If we subtract 980 from 1026, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 9:
140 goes into 460 3 times with a remainder of 40.
The number 3 becomes the next digit in our result. 
Result so far: 646507.3
Subtracting 420 from 460 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
When dividing 400 by 140, we get 2 with a remainder of 120.
The next digit of our result is 2. 
Result so far: 646507.32
Subtracting 280 from 400 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 11:
140 can be fit into 1200 8 times, resulting in a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 646507.328
If we take 1120 away from 1200, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 12:
140 can be fit into 800 5 times, resulting in a remainder of 100.
The next digit of our result is 5. 
Result so far: 646507.3285
Subtract 700 from 800 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 13:
The number 140 fits into 1000 7 times, leaving a remainder of 20.
Write down 7 as next digit of the result. 
Result so far: 646507.32857
Deduct 980 from 1000 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 14:
140 can be fit into 200 1 times, resulting in a remainder of 60.
Put 1 as the next digit of the answer. 
Result so far: 646507.328571
If we subtract 140 from 200, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 15:
When dividing 600 by 140, we get 4 with a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 646507.3285714
Deduct 560 from 600 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 16:
The number 140 fits into 400 2 times, leaving a remainder of 120.
Put 2 as the next digit of the answer. 
Result so far: 646507.32857142
Subtract 280 from 400 to get 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 646507.32857142, with a leftover of 1.2e-07.