We look at the division of 91780421 by 946 
We want to figure out the number of times 91780421 can be divided by 946.

Let's proceed to step 1:
946 goes into 9 0 times with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 946

Going ahead to step 2:
When dividing 91 by 946, we get 0 with a remainder of 91.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Take the next digit (7) from the dividend and append it to 91, then repeat: 917 / 946

Moving on to step 3:
946 can be fit into 917 0 times, resulting in a remainder of 917.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 917, we get 917.
Grab the next digit (8) from the dividend, add it to 917, then carry on: 9178 / 946

Moving on to step 4:
9178 divided by 946 is 9 with a remainder of 664.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 8514 away from 9178, we end up with 664.
Fetch the next digit (0) from the dividend, attach it to 664 and continue: 6640 / 946

Let's proceed to step 5:
If we divide 6640 by 946, we get 7 and a remainder of 18.
Write down 7 as next digit of the result. 
Result so far: 97.0
If we take 6622 away from 6640, we end up with 18.
Append the next digit (4) from the dividend to 18 and continue with: 184 / 946

Moving on to step 6:
184 divided by 946 is 0 with a remainder of 184.
Put 0 as the next digit of the answer. 
Result so far: 970.0
Subtract 0 from 184 to get 184.
Grab the next digit (2) from the dividend, add it to 184, then carry on: 1842 / 946

Step 7:
946 can be fit into 1842 1 times, resulting in a remainder of 896.
The next digit of our result is 1. 
Result so far: 9701.0
The remainder is 896 after subtracting 946 from 1842.
Grab the next digit (1) from the dividend, add it to 896, then carry on: 8961 / 946

Step 8:
When dividing 8961 by 946, we get 9 with a remainder of 447.
Record the quotient 9 as the next digit in the result. 
Result so far: 97019.0
If we subtract 8514 from 8961, we get 447.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4470, and continue the process.

Let's proceed to step 9:
The number 946 fits into 4470 4 times, leaving a remainder of 686.
Use 4 as the next digit of our solution. 
Result so far: 97019.4
If we subtract 3784 from 4470, we get 686.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6860, and continue the process.

Advancing to step 10:
The number 946 fits into 6860 7 times, leaving a remainder of 238.
The number 7 becomes the next digit in our result. 
Result so far: 97019.47
Subtract 6622 from 6860 to get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Step 11:
If we divide 2380 by 946, we get 2 and a remainder of 488.
Write down 2 as next digit of the result. 
Result so far: 97019.472
Subtracting 1892 from 2380 leaves us with 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Moving on to step 12:
When dividing 4880 by 946, we get 5 with a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 97019.4725
Deduct 4730 from 4880 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 13:
946 goes into 1500 1 times with a remainder of 554.
The number 1 becomes the next digit in our result. 
Result so far: 97019.47251
The remainder is 554 after subtracting 946 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

On to step 14:
If we divide 5540 by 946, we get 5 and a remainder of 810.
Write down 5 as next digit of the result. 
Result so far: 97019.472515
The remainder is 810 after subtracting 4730 from 5540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

On to step 15:
946 goes into 8100 8 times with a remainder of 532.
Write down 8 as next digit of the result. 
Result so far: 97019.4725158
The remainder is 532 after subtracting 7568 from 8100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Moving on to step 16:
946 can be fit into 5320 5 times, resulting in a remainder of 590.
The number 5 becomes the next digit in our result. 
Result so far: 97019.47251585
If we subtract 4730 from 5320, we get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

After the division, we end up with 97019.47251585 and a remainder of 5.9e-07.