We look at the division of 85430307 by 455 
Our goal is to divide 85430307 by 455.

On to step 1:
When dividing 8 by 455, we get 0 with 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.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 455

On to step 2:
85 divided by 455 is 0 with a remainder of 85.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 85, we end up with 85.
Grab the next digit (4) from the dividend, add it to 85, then carry on: 854 / 455

Advancing to step 3:
455 goes into 854 1 times with a remainder of 399.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 455 from 854 to get 399.
Append the next digit (3) from the dividend to 399 and continue with: 3993 / 455

Advancing to step 4:
If we divide 3993 by 455, we get 8 and a remainder of 353.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtract 3640 from 3993 to get 353.
Append the next digit (0) from the dividend to 353 and continue with: 3530 / 455

Advancing to step 5:
455 can be fit into 3530 7 times, resulting in a remainder of 345.
The number 7 becomes the next digit in our result. 
Result so far: 187.0
The remainder is 345 after subtracting 3185 from 3530.
Bring next digit (3) of the dividend behind the 345 and repeat the process: 3453 / 455

Advancing to step 6:
455 can be fit into 3453 7 times, resulting in a remainder of 268.
Use 7 as the next digit of our solution. 
Result so far: 1877.0
Subtracting 3185 from 3453 leaves us with 268.
Fetch the next digit (0) from the dividend, attach it to 268 and continue: 2680 / 455

Advancing to step 7:
2680 divided by 455 is 5 with a remainder of 405.
The next digit of our result is 5. 
Result so far: 18775.0
The remainder is 405 after subtracting 2275 from 2680.
Bring next digit (7) of the dividend behind the 405 and repeat the process: 4057 / 455

Let's proceed to step 8:
455 goes into 4057 8 times with a remainder of 417.
The next digit of our result is 8. 
Result so far: 187758.0
Deduct 3640 from 4057 and we're left with 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

Advancing to step 9:
455 goes into 4170 9 times with a remainder of 75.
Use 9 as the next digit of our solution. 
Result so far: 187758.9
Subtracting 4095 from 4170 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 10:
If we divide 750 by 455, we get 1 and a remainder of 295.
Put 1 as the next digit of the answer. 
Result so far: 187758.91
The remainder is 295 after subtracting 455 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Step 11:
2950 divided by 455 is 6 with a remainder of 220.
Record the quotient 6 as the next digit in the result. 
Result so far: 187758.916
If we subtract 2730 from 2950, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Going ahead to step 12:
455 can be fit into 2200 4 times, resulting in a remainder of 380.
Record the quotient 4 as the next digit in the result. 
Result so far: 187758.9164
Subtracting 1820 from 2200 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 13:
455 can be fit into 3800 8 times, resulting in a remainder of 160.
Record the quotient 8 as the next digit in the result. 
Result so far: 187758.91648
The remainder is 160 after subtracting 3640 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 14:
455 goes into 1600 3 times with a remainder of 235.
Put 3 as the next digit of the answer. 
Result so far: 187758.916483
If we subtract 1365 from 1600, we get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Step 15:
455 can be fit into 2350 5 times, resulting in a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 187758.9164835
Deduct 2275 from 2350 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 16:
455 can be fit into 750 1 times, resulting in a remainder of 295.
The next digit of our result is 1. 
Result so far: 187758.91648351
Subtract 455 from 750 to get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

In conclusion, the division gives 187758.91648351 with a balance of 2.95e-07.