90503812 divided by 870 
We want to figure out the number of times 90503812 can be divided by 870.

Let's proceed to step 1:
When dividing 9 by 870, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 870

Let's proceed to step 2:
The number 870 fits into 90 0 times, leaving a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 90 leaves us with 90.
Take the next digit (5) from the dividend and append it to 90, then repeat: 905 / 870

Going ahead to step 3:
If we divide 905 by 870, we get 1 and a remainder of 35.
The next digit of our result is 1. 
Result so far: 1.0
If we take 870 away from 905, we end up with 35.
Take the next digit (0) from the dividend and append it to 35, then repeat: 350 / 870

Step 4:
The number 870 fits into 350 0 times, leaving a remainder of 350.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 350 to get 350.
Append the next digit (3) from the dividend to 350 and continue with: 3503 / 870

Step 5:
If we divide 3503 by 870, we get 4 and a remainder of 23.
Use 4 as the next digit of our solution. 
Result so far: 104.0
If we subtract 3480 from 3503, we get 23.
Append the next digit (8) from the dividend to 23 and continue with: 238 / 870

Step 6:
If we divide 238 by 870, we get 0 and a remainder of 238.
Write down 0 as next digit of the result. 
Result so far: 1040.0
If we take 0 away from 238, we end up with 238.
Append the next digit (1) from the dividend to 238 and continue with: 2381 / 870

Going ahead to step 7:
When dividing 2381 by 870, we get 2 with a remainder of 641.
Write down 2 as next digit of the result. 
Result so far: 10402.0
If we subtract 1740 from 2381, we get 641.
Bring next digit (2) of the dividend behind the 641 and repeat the process: 6412 / 870

Step 8:
6412 divided by 870 is 7 with a remainder of 322.
The next digit of our result is 7. 
Result so far: 104027.0
Subtract 6090 from 6412 to get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Moving on to step 9:
The number 870 fits into 3220 3 times, leaving a remainder of 610.
The number 3 becomes the next digit in our result. 
Result so far: 104027.3
The remainder is 610 after subtracting 2610 from 3220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Let's proceed to step 10:
6100 divided by 870 is 7 with a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 104027.37
Subtract 6090 from 6100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
When dividing 100 by 870, we get 0 with a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 104027.37
If we subtract 0 from 100, we 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.

Moving on to step 12:
1000 divided by 870 is 1 with a remainder of 130.
Record the quotient 1 as the next digit in the result. 
Result so far: 104027.3701
Subtract 870 from 1000 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Moving on to step 13:
870 goes into 1300 1 times with a remainder of 430.
The next digit of our result is 1. 
Result so far: 104027.37011
The remainder is 430 after subtracting 870 from 1300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

After the division, we end up with 104027.37011 and a remainder of 0.00043.