We're dividing 74218636 by 646 
We want to divide 74218636 by 646.

Moving on to step 1:
The number 646 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 646

Advancing to step 2:
74 divided by 646 is 0 with a remainder of 74.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 74 and we're left with 74.
Grab the next digit (2) from the dividend, add it to 74, then carry on: 742 / 646

On to step 3:
The number 646 fits into 742 1 times, leaving a remainder of 96.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 646 away from 742, we end up with 96.
Take the next digit (1) from the dividend and append it to 96, then repeat: 961 / 646

Going ahead to step 4:
If we divide 961 by 646, we get 1 and a remainder of 315.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
The remainder is 315 after subtracting 646 from 961.
Bring next digit (8) of the dividend behind the 315 and repeat the process: 3158 / 646

Advancing to step 5:
When dividing 3158 by 646, we get 4 with a remainder of 574.
Record the quotient 4 as the next digit in the result. 
Result so far: 114.0
Subtracting 2584 from 3158 leaves us with 574.
Append the next digit (6) from the dividend to 574 and continue with: 5746 / 646

On to step 6:
646 goes into 5746 8 times with a remainder of 578.
The number 8 becomes the next digit in our result. 
Result so far: 1148.0
The remainder is 578 after subtracting 5168 from 5746.
Bring next digit (3) of the dividend behind the 578 and repeat the process: 5783 / 646

Advancing to step 7:
646 can be fit into 5783 8 times, resulting in a remainder of 615.
Use 8 as the next digit of our solution. 
Result so far: 11488.0
Deduct 5168 from 5783 and we're left with 615.
Fetch the next digit (6) from the dividend, attach it to 615 and continue: 6156 / 646

Going ahead to step 8:
646 can be fit into 6156 9 times, resulting in a remainder of 342.
The number 9 becomes the next digit in our result. 
Result so far: 114889.0
The remainder is 342 after subtracting 5814 from 6156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

On to step 9:
646 can be fit into 3420 5 times, resulting in a remainder of 190.
Use 5 as the next digit of our solution. 
Result so far: 114889.5
The remainder is 190 after subtracting 3230 from 3420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 10:
646 goes into 1900 2 times with a remainder of 608.
Use 2 as the next digit of our solution. 
Result so far: 114889.52
If we subtract 1292 from 1900, we get 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Advancing to step 11:
646 goes into 6080 9 times with a remainder of 266.
The number 9 becomes the next digit in our result. 
Result so far: 114889.529
The remainder is 266 after subtracting 5814 from 6080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

Let's proceed to step 12:
646 can be fit into 2660 4 times, resulting in a remainder of 76.
The next digit of our result is 4. 
Result so far: 114889.5294
Subtracting 2584 from 2660 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 13:
When dividing 760 by 646, we get 1 with a remainder of 114.
Put 1 as the next digit of the answer. 
Result so far: 114889.52941
Deduct 646 from 760 and we're left with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Going ahead to step 14:
1140 divided by 646 is 1 with a remainder of 494.
The next digit of our result is 1. 
Result so far: 114889.529411
Subtract 646 from 1140 to get 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

In conclusion, the division gives 114889.529411 with a balance of 4.94e-05.