80217457 ÷ 902 
We want to figure out the number of times 80217457 can be divided by 902.

Step 1:
If we divide 8 by 902, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 902

Let's proceed to step 2:
The number 902 fits into 80 0 times, leaving a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Fetch the next digit (2) from the dividend, attach it to 80 and continue: 802 / 902

Going ahead to step 3:
The number 902 fits into 802 0 times, leaving a remainder of 802.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 802 to get 802.
Append the next digit (1) from the dividend to 802 and continue with: 8021 / 902

Moving on to step 4:
902 goes into 8021 8 times with a remainder of 805.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 7216 from 8021 to get 805.
Include the next digit (7) from the dividend after 805, then repeat: 8057 / 902

Step 5:
8057 divided by 902 is 8 with a remainder of 841.
The number 8 becomes the next digit in our result. 
Result so far: 88.0
If we subtract 7216 from 8057, we get 841.
Append the next digit (4) from the dividend to 841 and continue with: 8414 / 902

Going ahead to step 6:
8414 divided by 902 is 9 with a remainder of 296.
Write down 9 as next digit of the result. 
Result so far: 889.0
The remainder is 296 after subtracting 8118 from 8414.
Grab the next digit (5) from the dividend, add it to 296, then carry on: 2965 / 902

Step 7:
If we divide 2965 by 902, we get 3 and a remainder of 259.
Put 3 as the next digit of the answer. 
Result so far: 8893.0
Deduct 2706 from 2965 and we're left with 259.
Append the next digit (7) from the dividend to 259 and continue with: 2597 / 902

Step 8:
The number 902 fits into 2597 2 times, leaving a remainder of 793.
Put 2 as the next digit of the answer. 
Result so far: 88932.0
Subtracting 1804 from 2597 leaves us with 793.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7930, and continue the process.

Going ahead to step 9:
When dividing 7930 by 902, we get 8 with a remainder of 714.
The number 8 becomes the next digit in our result. 
Result so far: 88932.8
Deduct 7216 from 7930 and we're left with 714.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7140, and continue the process.

Moving on to step 10:
902 can be fit into 7140 7 times, resulting in a remainder of 826.
Use 7 as the next digit of our solution. 
Result so far: 88932.87
Subtracting 6314 from 7140 leaves us with 826.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8260, and continue the process.

On to step 11:
8260 divided by 902 is 9 with a remainder of 142.
Use 9 as the next digit of our solution. 
Result so far: 88932.879
If we subtract 8118 from 8260, we get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

On to step 12:
When dividing 1420 by 902, we get 1 with a remainder of 518.
Use 1 as the next digit of our solution. 
Result so far: 88932.8791
If we subtract 902 from 1420, we get 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Advancing to step 13:
5180 divided by 902 is 5 with a remainder of 670.
Use 5 as the next digit of our solution. 
Result so far: 88932.87915
Deduct 4510 from 5180 and we're left with 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Advancing to step 14:
If we divide 6700 by 902, we get 7 and a remainder of 386.
Use 7 as the next digit of our solution. 
Result so far: 88932.879157
If we subtract 6314 from 6700, we get 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Let's proceed to step 15:
3860 divided by 902 is 4 with a remainder of 252.
Write down 4 as next digit of the result. 
Result so far: 88932.8791574
If we take 3608 away from 3860, we end up with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Moving on to step 16:
902 goes into 2520 2 times with a remainder of 716.
The number 2 becomes the next digit in our result. 
Result so far: 88932.87915742
Subtract 1804 from 2520 to get 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

In conclusion, the division gives 88932.87915742 with a balance of 7.16e-07.