89535749 ÷ 146 
The aim is to understand the frequency of 146 in 89535749.

Step 1:
146 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 146

Step 2:
If we divide 89 by 146, we get 0 and a remainder of 89.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 89 leaves us with 89.
Append the next digit (5) from the dividend to 89 and continue with: 895 / 146

Advancing to step 3:
If we divide 895 by 146, we get 6 and a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 876 away from 895, we end up with 19.
Include the next digit (3) from the dividend after 19, then repeat: 193 / 146

Let's proceed to step 4:
When dividing 193 by 146, we get 1 with a remainder of 47.
The next digit of our result is 1. 
Result so far: 61.0
Deduct 146 from 193 and we're left with 47.
Append the next digit (5) from the dividend to 47 and continue with: 475 / 146

Advancing to step 5:
146 can be fit into 475 3 times, resulting in a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 613.0
If we take 438 away from 475, we end up with 37.
Take the next digit (7) from the dividend and append it to 37, then repeat: 377 / 146

On to step 6:
377 divided by 146 is 2 with a remainder of 85.
Put 2 as the next digit of the answer. 
Result so far: 6132.0
The remainder is 85 after subtracting 292 from 377.
Take the next digit (4) from the dividend and append it to 85, then repeat: 854 / 146

Let's proceed to step 7:
146 can be fit into 854 5 times, resulting in a remainder of 124.
Put 5 as the next digit of the answer. 
Result so far: 61325.0
The remainder is 124 after subtracting 730 from 854.
Grab the next digit (9) from the dividend, add it to 124, then carry on: 1249 / 146

On to step 8:
1249 divided by 146 is 8 with a remainder of 81.
Write down 8 as next digit of the result. 
Result so far: 613258.0
If we take 1168 away from 1249, we end up with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Moving on to step 9:
If we divide 810 by 146, we get 5 and a remainder of 80.
Record the quotient 5 as the next digit in the result. 
Result so far: 613258.5
Subtracting 730 from 810 leaves us 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.

On to step 10:
146 can be fit into 800 5 times, resulting in a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 613258.55
Deduct 730 from 800 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

After the division, we end up with 613258.55 and a remainder of 0.07.