We look at the division of 86420290 by 944 
Let's see how many times 944 fits into 86420290.

Step 1:
8 divided by 944 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 944

Moving on to step 2:
If we divide 86 by 944, we get 0 and a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Take the next digit (4) from the dividend and append it to 86, then repeat: 864 / 944

On to step 3:
944 goes into 864 0 times with a remainder of 864.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 864 after subtracting 0 from 864.
Include the next digit (2) from the dividend after 864, then repeat: 8642 / 944

Advancing to step 4:
The number 944 fits into 8642 9 times, leaving a remainder of 146.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 8496 from 8642 leaves us with 146.
Fetch the next digit (0) from the dividend, attach it to 146 and continue: 1460 / 944

Let's proceed to step 5:
The number 944 fits into 1460 1 times, leaving a remainder of 516.
The number 1 becomes the next digit in our result. 
Result so far: 91.0
Subtracting 944 from 1460 leaves us with 516.
Bring next digit (2) of the dividend behind the 516 and repeat the process: 5162 / 944

On to step 6:
When dividing 5162 by 944, we get 5 with a remainder of 442.
The next digit of our result is 5. 
Result so far: 915.0
Subtract 4720 from 5162 to get 442.
Grab the next digit (9) from the dividend, add it to 442, then carry on: 4429 / 944

On to step 7:
If we divide 4429 by 944, we get 4 and a remainder of 653.
The next digit of our result is 4. 
Result so far: 9154.0
If we subtract 3776 from 4429, we get 653.
Grab the next digit (0) from the dividend, add it to 653, then carry on: 6530 / 944

Step 8:
944 goes into 6530 6 times with a remainder of 866.
The number 6 becomes the next digit in our result. 
Result so far: 91546.0
If we take 5664 away from 6530, we end up with 866.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8660, and continue the process.

On to step 9:
944 can be fit into 8660 9 times, resulting in a remainder of 164.
Write down 9 as next digit of the result. 
Result so far: 91546.9
Deduct 8496 from 8660 and we're left with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Let's proceed to step 10:
944 can be fit into 1640 1 times, resulting in a remainder of 696.
Write down 1 as next digit of the result. 
Result so far: 91546.91
If we take 944 away from 1640, we end up with 696.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

On to step 11:
If we divide 6960 by 944, we get 7 and a remainder of 352.
Put 7 as the next digit of the answer. 
Result so far: 91546.917
If we subtract 6608 from 6960, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Advancing to step 12:
944 can be fit into 3520 3 times, resulting in a remainder of 688.
The next digit of our result is 3. 
Result so far: 91546.9173
If we subtract 2832 from 3520, we get 688.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6880, and continue the process.

Advancing to step 13:
6880 divided by 944 is 7 with a remainder of 272.
Write down 7 as next digit of the result. 
Result so far: 91546.91737
If we subtract 6608 from 6880, we get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Going ahead to step 14:
2720 divided by 944 is 2 with a remainder of 832.
Record the quotient 2 as the next digit in the result. 
Result so far: 91546.917372
Deduct 1888 from 2720 and we're left with 832.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8320, and continue the process.

Moving on to step 15:
When dividing 8320 by 944, we get 8 with a remainder of 768.
Record the quotient 8 as the next digit in the result. 
Result so far: 91546.9173728
Deduct 7552 from 8320 and we're left with 768.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7680, and continue the process.

Advancing to step 16:
7680 divided by 944 is 8 with a remainder of 128.
Use 8 as the next digit of our solution. 
Result so far: 91546.91737288
The remainder is 128 after subtracting 7552 from 7680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

The final outcome is 91546.91737288, with a leftover of 1.28e-07.