90428479 ÷ 135 
Our goal is to divide 90428479 by 135.

Going ahead to step 1:
The number 135 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 135

Step 2:
When dividing 90 by 135, we get 0 with a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 90 to get 90.
Include the next digit (4) from the dividend after 90, then repeat: 904 / 135

Step 3:
135 can be fit into 904 6 times, resulting in a remainder of 94.
The next digit of our result is 6. 
Result so far: 6.0
If we take 810 away from 904, we end up with 94.
Take the next digit (2) from the dividend and append it to 94, then repeat: 942 / 135

Advancing to step 4:
135 can be fit into 942 6 times, resulting in a remainder of 132.
The number 6 becomes the next digit in our result. 
Result so far: 66.0
If we subtract 810 from 942, we get 132.
Take the next digit (8) from the dividend and append it to 132, then repeat: 1328 / 135

Advancing to step 5:
When dividing 1328 by 135, we get 9 with a remainder of 113.
The number 9 becomes the next digit in our result. 
Result so far: 669.0
Subtract 1215 from 1328 to get 113.
Append the next digit (4) from the dividend to 113 and continue with: 1134 / 135

Step 6:
If we divide 1134 by 135, we get 8 and a remainder of 54.
Put 8 as the next digit of the answer. 
Result so far: 6698.0
Deduct 1080 from 1134 and we're left with 54.
Fetch the next digit (7) from the dividend, attach it to 54 and continue: 547 / 135

Going ahead to step 7:
135 can be fit into 547 4 times, resulting in a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 66984.0
Subtracting 540 from 547 leaves us with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 135

Moving on to step 8:
If we divide 79 by 135, we get 0 and a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 669840.0
Subtract 0 from 79 to get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Moving on to step 9:
If we divide 790 by 135, we get 5 and a remainder of 115.
Put 5 as the next digit of the answer. 
Result so far: 669840.5
If we subtract 675 from 790, we get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Going ahead to step 10:
135 goes into 1150 8 times with a remainder of 70.
Record the quotient 8 as the next digit in the result. 
Result so far: 669840.58
Subtract 1080 from 1150 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 11:
135 can be fit into 700 5 times, resulting in a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 669840.585
Subtract 675 from 700 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 12:
135 can be fit into 250 1 times, resulting in a remainder of 115.
Use 1 as the next digit of our solution. 
Result so far: 669840.5851
Subtracting 135 from 250 leaves us with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

On to step 13:
135 goes into 1150 8 times with a remainder of 70.
Record the quotient 8 as the next digit in the result. 
Result so far: 669840.58518
If we take 1080 away from 1150, we end up 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.

Going ahead to step 14:
When dividing 700 by 135, we get 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 669840.585185
If we subtract 675 from 700, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 15:
The number 135 fits into 250 1 times, leaving a remainder of 115.
The number 1 becomes the next digit in our result. 
Result so far: 669840.5851851
Subtract 135 from 250 to get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Going ahead to step 16:
When dividing 1150 by 135, we get 8 with a remainder of 70.
The next digit of our result is 8. 
Result so far: 669840.58518518
The remainder is 70 after subtracting 1080 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Our division results in 669840.58518518 with a remaining 7e-08.