Let's divide 8658983 by 400
We're looking to find how many times 400 goes into 8658983.

On to step 1:
If we divide 8 by 400, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 400

Advancing to step 2:
The number 400 fits into 86 0 times, leaving a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Bring next digit (5) of the dividend behind the 86 and repeat the process: 865 / 400

Step 3:
400 can be fit into 865 2 times, resulting in a remainder of 65.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 800 away from 865, we end up with 65.
Grab the next digit (8) from the dividend, add it to 65, then carry on: 658 / 400

Let's proceed to step 4:
When dividing 658 by 400, we get 1 with a remainder of 258.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtract 400 from 658 to get 258.
Fetch the next digit (9) from the dividend, attach it to 258 and continue: 2589 / 400

Advancing to step 5:
400 goes into 2589 6 times with a remainder of 189.
Record the quotient 6 as the next digit in the result. 
Result so far: 216.0
The remainder is 189 after subtracting 2400 from 2589.
Fetch the next digit (8) from the dividend, attach it to 189 and continue: 1898 / 400

Step 6:
When dividing 1898 by 400, we get 4 with a remainder of 298.
Record the quotient 4 as the next digit in the result. 
Result so far: 2164.0
Subtracting 1600 from 1898 leaves us with 298.
Include the next digit (3) from the dividend after 298, then repeat: 2983 / 400

On to step 7:
400 goes into 2983 7 times with a remainder of 183.
The number 7 becomes the next digit in our result. 
Result so far: 21647.0
Subtract 2800 from 2983 to get 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Going ahead to step 8:
1830 divided by 400 is 4 with a remainder of 230.
Put 4 as the next digit of the answer. 
Result so far: 21647.4
If we take 1600 away from 1830, we end up with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 9:
400 goes into 2300 5 times with a remainder of 300.
Write down 5 as next digit of the result. 
Result so far: 21647.45
If we take 2000 away from 2300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 10:
When dividing 3000 by 400, we get 7 with a remainder of 200.
Put 7 as the next digit of the answer. 
Result so far: 21647.457
The remainder is 200 after subtracting 2800 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 11:
400 goes into 2000 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 21647.4575
Deduct 2000 from 2000 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 12:
When dividing 0 by 400, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 21647.4575
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 13:
0 divided by 400 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 21647.4575
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 21647.4575, and the remainder is 0.0.