We look at the division of 83859969 by 958 
Let's see how many times 958 fits into 83859969.

On to step 1:
958 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 958

Advancing to step 2:
If we divide 83 by 958, we get 0 and a remainder of 83.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 83, we end up with 83.
Append the next digit (8) from the dividend to 83 and continue with: 838 / 958

Step 3:
The number 958 fits into 838 0 times, leaving a remainder of 838.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 838 and we're left with 838.
Grab the next digit (5) from the dividend, add it to 838, then carry on: 8385 / 958

Advancing to step 4:
958 can be fit into 8385 8 times, resulting in a remainder of 721.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 7664 from 8385, we get 721.
Include the next digit (9) from the dividend after 721, then repeat: 7219 / 958

Going ahead to step 5:
958 goes into 7219 7 times with a remainder of 513.
The next digit of our result is 7. 
Result so far: 87.0
Subtracting 6706 from 7219 leaves us with 513.
Fetch the next digit (9) from the dividend, attach it to 513 and continue: 5139 / 958

Going ahead to step 6:
5139 divided by 958 is 5 with a remainder of 349.
Record the quotient 5 as the next digit in the result. 
Result so far: 875.0
Deduct 4790 from 5139 and we're left with 349.
Bring next digit (6) of the dividend behind the 349 and repeat the process: 3496 / 958

On to step 7:
When dividing 3496 by 958, we get 3 with a remainder of 622.
Use 3 as the next digit of our solution. 
Result so far: 8753.0
Subtract 2874 from 3496 to get 622.
Append the next digit (9) from the dividend to 622 and continue with: 6229 / 958

On to step 8:
958 goes into 6229 6 times with a remainder of 481.
The next digit of our result is 6. 
Result so far: 87536.0
If we subtract 5748 from 6229, we get 481.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

Advancing to step 9:
958 can be fit into 4810 5 times, resulting in a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 87536.5
Deduct 4790 from 4810 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
958 can be fit into 200 0 times, resulting in a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 87536.5
Subtract 0 from 200 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 11:
The number 958 fits into 2000 2 times, leaving a remainder of 84.
Use 2 as the next digit of our solution. 
Result so far: 87536.502
Deduct 1916 from 2000 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

On to step 12:
958 goes into 840 0 times with a remainder of 840.
Write down 0 as next digit of the result. 
Result so far: 87536.502
Deduct 0 from 840 and we're left with 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

On to step 13:
The number 958 fits into 8400 8 times, leaving a remainder of 736.
The number 8 becomes the next digit in our result. 
Result so far: 87536.50208
If we take 7664 away from 8400, we end up with 736.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7360, and continue the process.

On to step 14:
958 goes into 7360 7 times with a remainder of 654.
The next digit of our result is 7. 
Result so far: 87536.502087
Subtracting 6706 from 7360 leaves us with 654.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

Step 15:
The number 958 fits into 6540 6 times, leaving a remainder of 792.
The next digit of our result is 6. 
Result so far: 87536.5020876
If we subtract 5748 from 6540, we get 792.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7920, and continue the process.

Moving on to step 16:
The number 958 fits into 7920 8 times, leaving a remainder of 256.
The number 8 becomes the next digit in our result. 
Result so far: 87536.50208768
Subtract 7664 from 7920 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

The final outcome is 87536.50208768, with a leftover of 2.56e-07.