We look at the division of 46423399 by 840 
Our goal is to divide 46423399 by 840.

Going ahead to step 1:
4 divided by 840 is 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (6) from the dividend, attach it to 4 and continue: 46 / 840

Step 2:
The number 840 fits into 46 0 times, leaving a remainder of 46.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 46 leaves us with 46.
Bring next digit (4) of the dividend behind the 46 and repeat the process: 464 / 840

Let's proceed to step 3:
If we divide 464 by 840, we get 0 and a remainder of 464.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 464 to get 464.
Grab the next digit (2) from the dividend, add it to 464, then carry on: 4642 / 840

Advancing to step 4:
840 goes into 4642 5 times with a remainder of 442.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 4200 from 4642 and we're left with 442.
Grab the next digit (3) from the dividend, add it to 442, then carry on: 4423 / 840

Advancing to step 5:
The number 840 fits into 4423 5 times, leaving a remainder of 223.
Use 5 as the next digit of our solution. 
Result so far: 55.0
Deduct 4200 from 4423 and we're left with 223.
Include the next digit (3) from the dividend after 223, then repeat: 2233 / 840

Advancing to step 6:
If we divide 2233 by 840, we get 2 and a remainder of 553.
Use 2 as the next digit of our solution. 
Result so far: 552.0
If we subtract 1680 from 2233, we get 553.
Append the next digit (9) from the dividend to 553 and continue with: 5539 / 840

Going ahead to step 7:
The number 840 fits into 5539 6 times, leaving a remainder of 499.
Write down 6 as next digit of the result. 
Result so far: 5526.0
Subtract 5040 from 5539 to get 499.
Append the next digit (9) from the dividend to 499 and continue with: 4999 / 840

Going ahead to step 8:
840 goes into 4999 5 times with a remainder of 799.
The next digit of our result is 5. 
Result so far: 55265.0
Subtracting 4200 from 4999 leaves us with 799.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7990, and continue the process.

Step 9:
840 can be fit into 7990 9 times, resulting in a remainder of 430.
Write down 9 as next digit of the result. 
Result so far: 55265.9
Subtracting 7560 from 7990 leaves us with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Let's proceed to step 10:
840 can be fit into 4300 5 times, resulting in a remainder of 100.
Write down 5 as next digit of the result. 
Result so far: 55265.95
Deduct 4200 from 4300 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 11:
The number 840 fits into 1000 1 times, leaving a remainder of 160.
The number 1 becomes the next digit in our result. 
Result so far: 55265.951
Subtracting 840 from 1000 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 12:
840 goes into 1600 1 times with a remainder of 760.
Record the quotient 1 as the next digit in the result. 
Result so far: 55265.9511
Subtract 840 from 1600 to get 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

After the division, we end up with 55265.9511 and a remainder of 0.0076.