We're dividing 4209554 by 402 
Let's see how many times 402 fits into 4209554.

Let's proceed to step 1:
If we divide 4 by 402, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 402

On to step 2:
The number 402 fits into 42 0 times, leaving a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Include the next digit (0) from the dividend after 42, then repeat: 420 / 402

Going ahead to step 3:
402 goes into 420 1 times with a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 18 after subtracting 402 from 420.
Grab the next digit (9) from the dividend, add it to 18, then carry on: 189 / 402

Going ahead to step 4:
If we divide 189 by 402, we get 0 and a remainder of 189.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 189 and we're left with 189.
Fetch the next digit (5) from the dividend, attach it to 189 and continue: 1895 / 402

Advancing to step 5:
402 can be fit into 1895 4 times, resulting in a remainder of 287.
The next digit of our result is 4. 
Result so far: 104.0
If we subtract 1608 from 1895, we get 287.
Append the next digit (5) from the dividend to 287 and continue with: 2875 / 402

Advancing to step 6:
2875 divided by 402 is 7 with a remainder of 61.
Use 7 as the next digit of our solution. 
Result so far: 1047.0
Subtracting 2814 from 2875 leaves us with 61.
Append the next digit (4) from the dividend to 61 and continue with: 614 / 402

On to step 7:
402 can be fit into 614 1 times, resulting in a remainder of 212.
Record the quotient 1 as the next digit in the result. 
Result so far: 10471.0
Subtract 402 from 614 to get 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Moving on to step 8:
The number 402 fits into 2120 5 times, leaving a remainder of 110.
Write down 5 as next digit of the result. 
Result so far: 10471.5
Subtract 2010 from 2120 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 9:
If we divide 1100 by 402, we get 2 and a remainder of 296.
Use 2 as the next digit of our solution. 
Result so far: 10471.52
Deduct 804 from 1100 and we're left with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 10:
402 goes into 2960 7 times with a remainder of 146.
The number 7 becomes the next digit in our result. 
Result so far: 10471.527
If we take 2814 away from 2960, we end up with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Let's proceed to step 11:
1460 divided by 402 is 3 with a remainder of 254.
Write down 3 as next digit of the result. 
Result so far: 10471.5273
Deduct 1206 from 1460 and we're left with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Going ahead to step 12:
402 goes into 2540 6 times with a remainder of 128.
Use 6 as the next digit of our solution. 
Result so far: 10471.52736
If we subtract 2412 from 2540, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Let's proceed to step 13:
If we divide 1280 by 402, we get 3 and a remainder of 74.
Record the quotient 3 as the next digit in the result. 
Result so far: 10471.527363
If we take 1206 away from 1280, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 14:
402 can be fit into 740 1 times, resulting in a remainder of 338.
Write down 1 as next digit of the result. 
Result so far: 10471.5273631
Subtracting 402 from 740 leaves us with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

On to step 15:
When dividing 3380 by 402, we get 8 with a remainder of 164.
Put 8 as the next digit of the answer. 
Result so far: 10471.52736318
Subtract 3216 from 3380 to get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

In conclusion, the division gives 10471.52736318 with a balance of 1.64e-07.