We're dividing 6403120 by 237 
Our goal is to divide 6403120 by 237.

On to step 1:
When dividing 6 by 237, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 237

Let's proceed to step 2:
If we divide 64 by 237, we get 0 and a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Fetch the next digit (0) from the dividend, attach it to 64 and continue: 640 / 237

Going ahead to step 3:
The number 237 fits into 640 2 times, leaving a remainder of 166.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 166 after subtracting 474 from 640.
Include the next digit (3) from the dividend after 166, then repeat: 1663 / 237

Advancing to step 4:
When dividing 1663 by 237, we get 7 with a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 27.0
If we subtract 1659 from 1663, we get 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 237

Moving on to step 5:
237 goes into 41 0 times with a remainder of 41.
Record the quotient 0 as the next digit in the result. 
Result so far: 270.0
Subtracting 0 from 41 leaves us with 41.
Fetch the next digit (2) from the dividend, attach it to 41 and continue: 412 / 237

Advancing to step 6:
If we divide 412 by 237, we get 1 and a remainder of 175.
The next digit of our result is 1. 
Result so far: 2701.0
The remainder is 175 after subtracting 237 from 412.
Fetch the next digit (0) from the dividend, attach it to 175 and continue: 1750 / 237

Advancing to step 7:
The number 237 fits into 1750 7 times, leaving a remainder of 91.
The number 7 becomes the next digit in our result. 
Result so far: 27017.0
If we take 1659 away from 1750, we end up with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 8:
If we divide 910 by 237, we get 3 and a remainder of 199.
Record the quotient 3 as the next digit in the result. 
Result so far: 27017.3
If we subtract 711 from 910, we get 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Moving on to step 9:
When dividing 1990 by 237, we get 8 with a remainder of 94.
Put 8 as the next digit of the answer. 
Result so far: 27017.38
Subtracting 1896 from 1990 leaves us with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

On to step 10:
940 divided by 237 is 3 with a remainder of 229.
Write down 3 as next digit of the result. 
Result so far: 27017.383
The remainder is 229 after subtracting 711 from 940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Advancing to step 11:
237 can be fit into 2290 9 times, resulting in a remainder of 157.
The number 9 becomes the next digit in our result. 
Result so far: 27017.3839
The remainder is 157 after subtracting 2133 from 2290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Step 12:
1570 divided by 237 is 6 with a remainder of 148.
Put 6 as the next digit of the answer. 
Result so far: 27017.38396
Deduct 1422 from 1570 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 13:
When dividing 1480 by 237, we get 6 with a remainder of 58.
The next digit of our result is 6. 
Result so far: 27017.383966
The remainder is 58 after subtracting 1422 from 1480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final outcome is 27017.383966, with a leftover of 5.8e-06.