We look at the division of 90157321 by 878 
Let's see how many times 878 fits into 90157321.

Step 1:
9 divided by 878 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 878

Going ahead to step 2:
If we divide 90 by 878, we get 0 and a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 90 leaves us with 90.
Take the next digit (1) from the dividend and append it to 90, then repeat: 901 / 878

Going ahead to step 3:
When dividing 901 by 878, we get 1 with a remainder of 23.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 878 from 901 and we're left with 23.
Include the next digit (5) from the dividend after 23, then repeat: 235 / 878

Let's proceed to step 4:
When dividing 235 by 878, we get 0 with a remainder of 235.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we subtract 0 from 235, we get 235.
Append the next digit (7) from the dividend to 235 and continue with: 2357 / 878

Let's proceed to step 5:
If we divide 2357 by 878, we get 2 and a remainder of 601.
Use 2 as the next digit of our solution. 
Result so far: 102.0
Subtract 1756 from 2357 to get 601.
Append the next digit (3) from the dividend to 601 and continue with: 6013 / 878

Going ahead to step 6:
878 can be fit into 6013 6 times, resulting in a remainder of 745.
The next digit of our result is 6. 
Result so far: 1026.0
If we take 5268 away from 6013, we end up with 745.
Bring next digit (2) of the dividend behind the 745 and repeat the process: 7452 / 878

Advancing to step 7:
878 can be fit into 7452 8 times, resulting in a remainder of 428.
The next digit of our result is 8. 
Result so far: 10268.0
Deduct 7024 from 7452 and we're left with 428.
Include the next digit (1) from the dividend after 428, then repeat: 4281 / 878

On to step 8:
The number 878 fits into 4281 4 times, leaving a remainder of 769.
Write down 4 as next digit of the result. 
Result so far: 102684.0
The remainder is 769 after subtracting 3512 from 4281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7690, and continue the process.

On to step 9:
The number 878 fits into 7690 8 times, leaving a remainder of 666.
Use 8 as the next digit of our solution. 
Result so far: 102684.8
Subtracting 7024 from 7690 leaves us with 666.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6660, and continue the process.

Going ahead to step 10:
The number 878 fits into 6660 7 times, leaving a remainder of 514.
The next digit of our result is 7. 
Result so far: 102684.87
Subtracting 6146 from 6660 leaves us with 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

Step 11:
The number 878 fits into 5140 5 times, leaving a remainder of 750.
The next digit of our result is 5. 
Result so far: 102684.875
If we subtract 4390 from 5140, we get 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Moving on to step 12:
If we divide 7500 by 878, we get 8 and a remainder of 476.
Record the quotient 8 as the next digit in the result. 
Result so far: 102684.8758
If we take 7024 away from 7500, we end up with 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

On to step 13:
If we divide 4760 by 878, we get 5 and a remainder of 370.
Record the quotient 5 as the next digit in the result. 
Result so far: 102684.87585
If we subtract 4390 from 4760, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Going ahead to step 14:
When dividing 3700 by 878, we get 4 with a remainder of 188.
The number 4 becomes the next digit in our result. 
Result so far: 102684.875854
The remainder is 188 after subtracting 3512 from 3700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

On to step 15:
When dividing 1880 by 878, we get 2 with a remainder of 124.
Record the quotient 2 as the next digit in the result. 
Result so far: 102684.8758542
If we take 1756 away from 1880, we end up with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Advancing to step 16:
The number 878 fits into 1240 1 times, leaving a remainder of 362.
Put 1 as the next digit of the answer. 
Result so far: 102684.87585421
The remainder is 362 after subtracting 878 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Our division results in 102684.87585421 with a remaining 3.62e-07.