We're dividing 42588403 by 899 
We want to figure out the number of times 42588403 can be divided by 899.

Going ahead to step 1:
899 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 899

Going ahead to step 2:
If we divide 42 by 899, we get 0 and a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Grab the next digit (5) from the dividend, add it to 42, then carry on: 425 / 899

Step 3:
899 can be fit into 425 0 times, resulting in a remainder of 425.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 425 leaves us with 425.
Bring next digit (8) of the dividend behind the 425 and repeat the process: 4258 / 899

Going ahead to step 4:
4258 divided by 899 is 4 with a remainder of 662.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 3596 away from 4258, we end up with 662.
Append the next digit (8) from the dividend to 662 and continue with: 6628 / 899

Going ahead to step 5:
899 can be fit into 6628 7 times, resulting in a remainder of 335.
The next digit of our result is 7. 
Result so far: 47.0
Subtracting 6293 from 6628 leaves us with 335.
Take the next digit (4) from the dividend and append it to 335, then repeat: 3354 / 899

Step 6:
If we divide 3354 by 899, we get 3 and a remainder of 657.
Use 3 as the next digit of our solution. 
Result so far: 473.0
Subtracting 2697 from 3354 leaves us with 657.
Bring next digit (0) of the dividend behind the 657 and repeat the process: 6570 / 899

Step 7:
The number 899 fits into 6570 7 times, leaving a remainder of 277.
Record the quotient 7 as the next digit in the result. 
Result so far: 4737.0
If we take 6293 away from 6570, we end up with 277.
Take the next digit (3) from the dividend and append it to 277, then repeat: 2773 / 899

Step 8:
899 can be fit into 2773 3 times, resulting in a remainder of 76.
Use 3 as the next digit of our solution. 
Result so far: 47373.0
Subtract 2697 from 2773 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 9:
760 divided by 899 is 0 with a remainder of 760.
Put 0 as the next digit of the answer. 
Result so far: 47373.0
Subtracting 0 from 760 leaves us with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Going ahead to step 10:
899 can be fit into 7600 8 times, resulting in a remainder of 408.
The next digit of our result is 8. 
Result so far: 47373.08
Deduct 7192 from 7600 and we're left with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Going ahead to step 11:
If we divide 4080 by 899, we get 4 and a remainder of 484.
Record the quotient 4 as the next digit in the result. 
Result so far: 47373.084
Subtracting 3596 from 4080 leaves us with 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

On to step 12:
When dividing 4840 by 899, we get 5 with a remainder of 345.
Use 5 as the next digit of our solution. 
Result so far: 47373.0845
If we take 4495 away from 4840, we end up with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Step 13:
The number 899 fits into 3450 3 times, leaving a remainder of 753.
Use 3 as the next digit of our solution. 
Result so far: 47373.08453
If we take 2697 away from 3450, we end up with 753.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7530, and continue the process.

Let's proceed to step 14:
899 goes into 7530 8 times with a remainder of 338.
The number 8 becomes the next digit in our result. 
Result so far: 47373.084538
If we take 7192 away from 7530, we end up with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Step 15:
If we divide 3380 by 899, we get 3 and a remainder of 683.
The next digit of our result is 3. 
Result so far: 47373.0845383
Subtract 2697 from 3380 to get 683.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6830, and continue the process.

Advancing to step 16:
When dividing 6830 by 899, we get 7 with a remainder of 537.
The next digit of our result is 7. 
Result so far: 47373.08453837
Deduct 6293 from 6830 and we're left with 537.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5370, and continue the process.

After the division, we end up with 47373.08453837 and a remainder of 5.37e-07.